Starting with polynomial:
P : 2*t
Extension levels are: 1 48
-------------------------------------------------
Trying to find an order 48 Kronrod extension for:
P1 : 2*t
Solvable: 1
-------------------------------------------------
Ending with final polynomial:
P : 2*t^49 - 1176*t^47 + 317814*t^45 - 52439310*t^43 + 23676348465/4*t^41 - 970730287065/2*t^39 + 239770380905055/8*t^37 - 11406219548769045/8*t^35 + 6786700631517581775/128*t^33 - 24884568982231133175/16*t^31 + 2314264915347495385275/64*t^29 - 42708707074140142110075/64*t^27 + 4996918727674396626878775/512*t^25 - 28828377275044595924300625/256*t^23 + 1041939921512326109835436875/1024*t^21 - 7293579450586282768848058125/1024*t^19 + 1247202086050254353473017939375/32768*t^17 - 1247202086050254353473017939375/8192*t^15 + 14550691003919634123851875959375/32768*t^13 - 29867207850150827938432798021875/32768*t^11 + 328539286351659107322760778240625/262144*t^9 - 140802551293568188852611762103125/131072*t^7 + 268804870651357451445895182196875/524288*t^5 - 58435841445947272053455474390625/524288*t^3 + 58435841445947272053455474390625/8388608*t
-------------------------------------------------
Computing nodes and weights
  current precision for roots: 53
  current precision for roots: 106
 current precision for weights: 53
Linear system for weights solvable: 0
  current precision for roots: 106
  current precision for roots: 212
 current precision for weights: 106
Linear system for weights solvable: 0
  current precision for roots: 212
  current precision for roots: 424
 current precision for weights: 212
Linear system for weights solvable: 1
  current precision for roots: 424
  current precision for roots: 848
 current precision for weights: 424
Linear system for weights solvable: 1
Sufficient bits for target precision reached
-------------------------------------------------
The nodes are:
| (7.3768593906319283399 - 5.3677993533597232443e-860j)  +/-  (2.01e-244, 2.01e-244j)
| (7.868062864081665398 - 3.5373647701352958336e-870j)  +/-  (5.12e-245, 5.12e-245j)
| (-5.6958999850352089369 + 1.8986620410686374804e-877j)  +/-  (1.64e-243, 1.64e-243j)
| (-6.9228528349597616618 - 4.5740510891090724152e-878j)  +/-  (5.45e-244, 5.45e-244j)
| (8.4173371862679785467 + 8.2877756733939556856e-879j)  +/-  (9.79e-246, 9.79e-246j)
| (6.4952925650076596711 - 4.9165636457349682926e-892j)  +/-  (9.66e-244, 9.66e-244j)
| (-9.0794053951994340445 - 9.1622654639763304667e-912j)  +/-  (6.35e-247, 6.35e-247j)
| (9.0794053951994340445 - 2.0538164893786158437e-907j)  +/-  (6.17e-247, 6.17e-247j)
| (6.9228528349597616618 + 3.0620701266449933267e-915j)  +/-  (5.09e-244, 5.09e-244j)
| (5.6958999850352089369 + 2.0905439253360577352e-933j)  +/-  (1.42e-243, 1.42e-243j)
| (5.3168113741835167473 + 6.2391044461293250002e-948j)  +/-  (1.26e-243, 1.26e-243j)
| (-1.2663620236873580245 - 1.7931396608734640506e-961j)  +/-  (1.4e-250, 1.4e-250j)
| (-7.3768593906319283399 - 3.6482625044113738919e-954j)  +/-  (2.42e-244, 2.42e-244j)
| (2.8824356106455998863 - 2.7885659416653967845e-957j)  +/-  (2.15e-246, 2.15e-246j)
| (-6.4952925650076596711 - 1.7672652317868264965e-953j)  +/-  (9.02e-244, 9.02e-244j)
| (-7.868062864081665398 - 6.405135636557117574e-957j)  +/-  (5.17e-245, 5.17e-245j)
| (-4.9482434430048916143 - 1.3719058730566892737e-954j)  +/-  (9.74e-244, 9.74e-244j)
| (-8.4173371862679785467 + 2.118695515015276344e-959j)  +/-  (8.86e-246, 8.86e-246j)
| (-1.9061247609883609464 + 1.0857794311397313967e-960j)  +/-  (1.3e-248, 1.3e-248j)
| (-3.5498700372120951427 - 8.0712726697051463108e-957j)  +/-  (4.16e-245, 4.16e-245j)
| (4.9482434430048916143 + 1.2272457957893102062e-955j)  +/-  (1.06e-243, 1.06e-243j)
| (2.2289177453859469603 - 2.2369133626384012326e-965j)  +/-  (8.93e-248, 8.93e-248j)
| (-4.5884931402744826911 + 4.6370267457537673216e-961j)  +/-  (5.48e-244, 5.48e-244j)
| (-3.214132868456856238 - 1.4941634737264241408e-963j)  +/-  (9.31e-246, 9.31e-246j)
| (-2.2289177453859469603 + 1.3194344412152539622e-965j)  +/-  (8.32e-248, 8.32e-248j)
| (-4.2362125300687871955 - 5.9093292810329432506e-963j)  +/-  (2.49e-244, 2.49e-244j)
| (0.94864050761025747267 + 2.9715087163384139378e-969j)  +/-  (1.35e-251, 1.35e-251j)
| (4.5884931402744826911 + 1.2779081417198719751e-960j)  +/-  (5.07e-244, 5.07e-244j)
| (-3.8903074057661615901 - 2.4850525600194705312e-964j)  +/-  (1.14e-244, 1.14e-244j)
| (-0.63189269951096169452 - 4.5503302296759601338e-973j)  +/-  (8.28e-253, 8.28e-253j)
| (-6.0877272810547553392 + 3.9417236951778269236e-964j)  +/-  (1.43e-243, 1.43e-243j)
| (4.2362125300687871955 - 5.3707905110369388323e-965j)  +/-  (2.66e-244, 2.66e-244j)
| (1.2663620236873580245 - 6.269791267921442175e-981j)  +/-  (1.55e-250, 1.55e-250j)
| (6.0877272810547553392 - 2.2434199222035470198e-974j)  +/-  (1.49e-243, 1.49e-243j)
| (-5.3168113741835167473 - 6.766891783494125709e-981j)  +/-  (1.38e-243, 1.38e-243j)
| (-1.5854022514550468401 - 1.7124849946689932519e-987j)  +/-  (1.55e-249, 1.55e-249j)
| (3.214132868456856238 - 1.7070027912391566769e-980j)  +/-  (1.11e-245, 1.11e-245j)
| (0.63189269951096169452 - 6.2060955546079702793e-990j)  +/-  (9.02e-253, 9.02e-253j)
| (3.5498700372120951427 - 9.596977367819499339e-983j)  +/-  (3.57e-245, 3.57e-245j)
| (9.519849608291030423e-1015 - 1.0497399080353918983e-1013j)  +/-  (5.16e-1012, 5.16e-1012j)
| (-0.94864050761025747267 + 2.4014542558793700517e-989j)  +/-  (1.33e-251, 1.33e-251j)
| (-2.8824356106455998863 - 1.0310987052928017899e-985j)  +/-  (2.15e-246, 2.15e-246j)
| (1.5854022514550468401 - 8.9247020633051629722e-988j)  +/-  (1.69e-249, 1.69e-249j)
| (1.9061247609883609464 + 1.8389057609310225393e-985j)  +/-  (1.43e-248, 1.43e-248j)
| (2.5542011939519628034 - 1.3993326473502945618e-985j)  +/-  (4.44e-247, 4.44e-247j)
| (-2.5542011939519628034 + 1.5568270913593055286e-988j)  +/-  (4.49e-247, 4.49e-247j)
| (-0.3157869005237549375 + 1.4354290761157177193e-993j)  +/-  (5.45e-254, 5.45e-254j)
| (3.8903074057661615901 - 2.6934661186173350466e-989j)  +/-  (1.3e-244, 1.3e-244j)
| (0.3157869005237549375 - 1.2651994184961194796e-999j)  +/-  (5.05e-254, 5.05e-254j)
-------------------------------------------------
The weights are:
| (6.1704339611101352037e-25 + 2.4433376535793614387e-883j)  +/-  (8.29e-75, 8.21e-196j)
| (3.7836563879618741236e-28 + 1.6697388167116428677e-885j)  +/-  (2.9e-76, 2.87e-197j)
| (1.7659919001699999965e-15 + 1.3554428602382507296e-880j)  +/-  (9.61e-72, 9.52e-193j)
| (3.8052750102425209274e-22 - 5.7520129471230069358e-884j)  +/-  (9.2e-76, 9.12e-197j)
| (5.655218285268774114e-32 - 9.6370918424224622818e-888j)  +/-  (2.28e-78, 2.26e-199j)
| (1.1191499622209997681e-19 + 1.6000849168835296462e-881j)  +/-  (4.55e-74, 4.5e-195j)
| (6.8113891231162985079e-37 - 2.114660762756216475e-891j)  +/-  (1.86e-83, 1.84e-204j)
| (6.8113891231162985079e-37 + 2.0439634142497688424e-890j)  +/-  (6.74e-81, 6.68e-202j)
| (3.8052750102425209274e-22 - 1.8116947615482676521e-882j)  +/-  (6.03e-75, 5.97e-196j)
| (1.7659919001699999965e-15 + 1.0541229193352727119e-879j)  +/-  (2.52e-73, 2.5e-194j)
| (1.1139838337988044584e-13 - 6.8315024588283539429e-879j)  +/-  (1.11e-72, 1.1e-193j)
| (0.036126467371490124764 - 9.2723803418462737193e-874j)  +/-  (1.63e-53, 1.62e-174j)
| (6.1704339611101352037e-25 + 2.2449696864461448137e-885j)  +/-  (7.15e-82, 7.08e-203j)
| (4.5863561644566030383e-05 + 6.3535140877027985565e-875j)  +/-  (4.61e-67, 4.57e-188j)
| (1.1191499622209997681e-19 + 1.0168442397485643653e-882j)  +/-  (7.01e-80, 6.94e-201j)
| (3.7836563879618741236e-28 - 5.3800307591694457439e-887j)  +/-  (1.25e-83, 1.24e-204j)
| (4.7716470401248638296e-12 + 7.4730473188548110646e-879j)  +/-  (1.2e-77, 1.19e-198j)
| (5.655218285268774114e-32 + 6.3486483960922547707e-889j)  +/-  (1.92e-85, 1.91e-206j)
| (0.0047966312683466149577 - 3.14582591726350918e-874j)  +/-  (1.39e-66, 1.37e-187j)
| (6.4195815258947118211e-07 + 3.0918420417013744779e-876j)  +/-  (1.38e-74, 1.37e-195j)
| (4.7716470401248638296e-12 + 3.7925336352687246844e-878j)  +/-  (4.33e-78, 4.29e-199j)
| (0.0012714992687608799387 + 2.9206436397868260051e-874j)  +/-  (5.63e-70, 5.58e-191j)
| (1.441769692730351445e-10 - 4.2313268654980259121e-878j)  +/-  (2.13e-77, 2.11e-198j)
| (6.1394013052101912198e-06 - 9.8646229130843481026e-876j)  +/-  (2.64e-74, 2.61e-195j)
| (0.0012714992687608799387 + 1.5652354631266678329e-874j)  +/-  (4.15e-71, 4.11e-192j)
| (3.1661432936719304414e-09 + 2.0430184821477946411e-877j)  +/-  (4.35e-77, 4.31e-198j)
| (0.072761047201653365219 + 1.769346707579863159e-873j)  +/-  (8.64e-68, 8.57e-189j)
| (1.441769692730351445e-10 - 1.8157341279179887302e-877j)  +/-  (1.92e-80, 1.91e-201j)
| (5.1752892276907664847e-08 - 8.5134721055815691713e-877j)  +/-  (1.86e-76, 1.84e-197j)
| (0.11973328340805418324 - 1.8217833297876291288e-873j)  +/-  (5.95e-70, 5.9e-191j)
| (1.8087686462259733884e-17 - 1.3318417117503841328e-881j)  +/-  (6.4e-82, 6.34e-203j)
| (3.1661432936719304414e-09 + 7.5544057074338875596e-877j)  +/-  (1.78e-80, 1.77e-201j)
| (0.036126467371490124764 - 1.3115664981035628049e-873j)  +/-  (9.37e-73, 9.26e-194j)
| (1.8087686462259733884e-17 - 1.3910675273488011557e-880j)  +/-  (1.32e-83, 1.31e-204j)
| (1.1139838337988044584e-13 - 1.1086803297880807688e-879j)  +/-  (1.39e-80, 1.37e-201j)
| (0.014612681974828686505 + 5.6872389534501204117e-874j)  +/-  (9.49e-74, 9.36e-195j)
| (6.1394013052101912198e-06 - 2.5098008325719055274e-875j)  +/-  (2.22e-79, 2.19e-200j)
| (0.11973328340805418324 - 2.1631257378082283235e-873j)  +/-  (3.55e-74, 3.43e-195j)
| (6.4195815258947118211e-07 + 8.8277542222813616145e-876j)  +/-  (3.68e-80, 3.61e-201j)
| (0.17813377193108357593 - 2.412435743590636768e-873j)  +/-  (1.87e-74, 1.78e-195j)
| (0.072761047201653365219 + 1.3661339325317771492e-873j)  +/-  (1.45e-74, 1.39e-195j)
| (4.5863561644566030383e-05 + 2.783367161067907992e-875j)  +/-  (3.04e-78, 2.91e-199j)
| (0.014612681974828686505 + 8.8009843286385715263e-874j)  +/-  (5.37e-77, 5.14e-198j)
| (0.0047966312683466149577 - 5.337976361614914499e-874j)  +/-  (8.27e-78, 7.92e-199j)
| (0.00027054068897748627963 - 1.4380829630221909777e-874j)  +/-  (6.48e-79, 6.13e-200j)
| (0.00027054068897748627963 - 6.9835266133543989844e-875j)  +/-  (6.65e-79, 6.07e-200j)
| (0.16130826286314713598 + 2.2014390766747498908e-873j)  +/-  (7.42e-77, 5.59e-198j)
| (5.1752892276907664847e-08 - 2.7512198483301593469e-876j)  +/-  (2.76e-81, 2.97e-202j)
| (0.16130826286314713598 + 2.3983456014805889654e-873j)  +/-  (5.89e-77, 4.11e-198j)
