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Label Polynomial Discriminant Galois group Class group Regulator
20.20.816...408.1 $x^{20} - 5 x^{19} - 18 x^{18} + 118 x^{17} + 63 x^{16} - 1022 x^{15} + 498 x^{14} + 4100 x^{13} - 4382 x^{12} - 7485 x^{11} + 12429 x^{10} + 3921 x^{9} - 14821 x^{8} + 3875 x^{7} + 6273 x^{6} - 3851 x^{5} - 190 x^{4} + 641 x^{3} - 150 x^{2} + 5 x + 1$ $2^{10}\cdot 3^{15}\cdot 11^{18}$ $C_5\times D_4$ (as 20T12) trivial $71784662.2779$
20.20.118...912.1 $x^{20} - 8 x^{19} + 4 x^{18} + 118 x^{17} - 260 x^{16} - 490 x^{15} + 1920 x^{14} + 114 x^{13} - 5672 x^{12} + 3567 x^{11} + 7304 x^{10} - 8202 x^{9} - 3013 x^{8} + 6759 x^{7} - 980 x^{6} - 1898 x^{5} + 680 x^{4} + 134 x^{3} - 83 x^{2} + 5 x + 1$ $2^{15}\cdot 3^{10}\cdot 11^{19}$ $C_5\times D_4$ (as 20T12) trivial $90377894.1176$
20.20.169...125.1 $x^{20} - x^{19} - 20 x^{18} + 19 x^{17} + 170 x^{16} - 151 x^{15} - 801 x^{14} + 650 x^{13} + 2289 x^{12} - 1639 x^{11} - 4080 x^{10} + 2442 x^{9} + 4489 x^{8} - 2058 x^{7} - 2891 x^{6} + 877 x^{5} + 951 x^{4} - 151 x^{3} - 108 x^{2} + 12 x + 1$ $5^{15}\cdot 11^{18}$ $C_{20}$ (as 20T1) trivial $115949178.41$
20.20.171...125.1 $x^{20} - 20 x^{18} + 170 x^{16} - x^{15} - 800 x^{14} + 15 x^{13} + 2275 x^{12} - 90 x^{11} - 4004 x^{10} + 275 x^{9} + 4290 x^{8} - 450 x^{7} - 2640 x^{6} + 379 x^{5} + 825 x^{4} - 145 x^{3} - 100 x^{2} + 20 x + 1$ $3^{10}\cdot 5^{35}$ $C_{20}$ (as 20T1) trivial $122630529.842$
20.20.190...336.1 $x^{20} - 19 x^{18} + 148 x^{16} - 617 x^{14} + 1507 x^{12} - 2218 x^{10} + 1946 x^{8} - 970 x^{6} + 249 x^{4} - 27 x^{2} + 1$ $2^{32}\cdot 83^{4}\cdot 983^{4}$ $C_2\times C_4^4:S_5$ (as 20T673) trivial $118594875.288$
20.20.220...000.1 $x^{20} - 10 x^{19} + 20 x^{18} + 105 x^{17} - 465 x^{16} + 48 x^{15} + 2450 x^{14} - 3200 x^{13} - 3700 x^{12} + 9850 x^{11} - 1396 x^{10} - 10230 x^{9} + 6315 x^{8} + 3270 x^{7} - 3620 x^{6} + 17 x^{5} + 680 x^{4} - 100 x^{3} - 40 x^{2} + 5 x + 1$ $2^{16}\cdot 5^{23}\cdot 7^{10}$ $F_5$ (as 20T5) trivial $148023785.442$
20.20.321...000.1 $x^{20} - 8 x^{19} - 6 x^{18} + 175 x^{17} - 183 x^{16} - 1268 x^{15} + 1844 x^{14} + 4088 x^{13} - 5900 x^{12} - 6726 x^{11} + 9014 x^{10} + 5898 x^{9} - 7315 x^{8} - 2666 x^{7} + 3154 x^{6} + 539 x^{5} - 662 x^{4} - 30 x^{3} + 54 x^{2} - x - 1$ $2^{16}\cdot 5^{10}\cdot 3469^{5}$ $D_5\wr C_2$ (as 20T48) trivial $160161061.462$
20.20.335...125.1 $x^{20} - 2 x^{19} - 27 x^{18} + 58 x^{17} + 272 x^{16} - 639 x^{15} - 1245 x^{14} + 3339 x^{13} + 2469 x^{12} - 8464 x^{11} - 1650 x^{10} + 9965 x^{9} + 827 x^{8} - 6081 x^{7} - 914 x^{6} + 1796 x^{5} + 510 x^{4} - 151 x^{3} - 63 x^{2} - x + 1$ $5^{5}\cdot 401^{10}$ $C_5:D_4$ (as 20T11) trivial $151466349.639$
20.20.342...625.1 $x^{20} - 2 x^{19} - 31 x^{18} + 65 x^{17} + 310 x^{16} - 641 x^{15} - 1445 x^{14} + 2911 x^{13} + 3496 x^{12} - 6946 x^{11} - 4324 x^{10} + 9090 x^{9} + 2099 x^{8} - 6378 x^{7} + 470 x^{6} + 2072 x^{5} - 673 x^{4} - 143 x^{3} + 105 x^{2} - 18 x + 1$ $5^{10}\cdot 19^{5}\cdot 1699^{5}$ $D_5\wr C_2$ (as 20T48) trivial $167949047.356$
20.20.344...744.1 $x^{20} - 19 x^{18} + 152 x^{16} - 666 x^{14} + 1742 x^{12} - 2782 x^{10} + 2665 x^{8} - 1443 x^{6} + 390 x^{4} - 40 x^{2} + 1$ $2^{20}\cdot 3^{10}\cdot 11^{18}$ $C_2\times C_{10}$ (as 20T3) trivial $171724264.493$
20.20.437...384.1 $x^{20} - 21 x^{18} + 170 x^{16} - 713 x^{14} + 1721 x^{12} - 2479 x^{10} + 2121 x^{8} - 1035 x^{6} + 265 x^{4} - 30 x^{2} + 1$ $2^{20}\cdot 11^{16}\cdot 23^{2}\cdot 131^{2}$ $C_2^{10}:C_5$ (as 20T341) trivial $180717704.263$
20.20.790...125.1 $x^{20} - 5 x^{19} - 17 x^{18} + 123 x^{17} + 30 x^{16} - 1110 x^{15} + 927 x^{14} + 4504 x^{13} - 6723 x^{12} - 7662 x^{11} + 17547 x^{10} + 2813 x^{9} - 18435 x^{8} + 2142 x^{7} + 8947 x^{6} - 1585 x^{5} - 1872 x^{4} + 343 x^{3} + 120 x^{2} - 28 x + 1$ $3^{10}\cdot 5^{17}\cdot 23^{4}\cdot 89^{4}$ $C_4\times S_5$ (as 20T123) trivial $286844082.384$
20.20.103...625.1 $x^{20} - 31 x^{18} + 383 x^{16} - 2494 x^{14} + 9467 x^{12} - 21771 x^{10} + 30363 x^{8} - 24809 x^{6} + 10867 x^{4} - 2026 x^{2} + 49$ $3^{6}\cdot 5^{16}\cdot 23^{6}\cdot 89^{4}$ $C_2^6:S_5$ (as 20T368) trivial $302745260.608$
20.20.109...041.1 $x^{20} - 10 x^{19} + 23 x^{18} + 78 x^{17} - 374 x^{16} - 68 x^{15} + 2157 x^{14} - 1261 x^{13} - 6828 x^{12} + 6089 x^{11} + 13699 x^{10} - 13072 x^{9} - 18747 x^{8} + 14875 x^{7} + 17766 x^{6} - 8040 x^{5} - 10656 x^{4} + 587 x^{3} + 2930 x^{2} + 851 x + 59$ $23\cdot 31^{2}\cdot 83\cdot 709\cdot 1877^{2}\cdot 1933^{2}\cdot 8011^{2}$ $C_2^{10}.S_{10}$ (as 20T1110) trivial $304104672.061$
20.20.147...736.1 $x^{20} - 19 x^{18} + 147 x^{16} - 608 x^{14} + 1472 x^{12} - 2137 x^{10} + 1828 x^{8} - 872 x^{6} + 212 x^{4} - 24 x^{2} + 1$ $2^{20}\cdot 43^{2}\cdot 47^{2}\cdot 61^{4}\cdot 397^{4}$ $C_2^{10}.S_5$ (as 20T799) trivial $339824602.805$
20.20.175...856.1 $x^{20} - 4 x^{19} - 21 x^{18} + 96 x^{17} + 127 x^{16} - 802 x^{15} - 163 x^{14} + 3080 x^{13} - 678 x^{12} - 6233 x^{11} + 2501 x^{10} + 7005 x^{9} - 3349 x^{8} - 4342 x^{7} + 2210 x^{6} + 1361 x^{5} - 724 x^{4} - 155 x^{3} + 97 x^{2} - 5 x - 1$ $2^{10}\cdot 11^{16}\cdot 43^{2}\cdot 67^{4}$ $C_2^5.C_2^8:C_{10}$ (as 20T751) trivial $388032792.777$
20.20.195...856.1 $x^{20} - 22 x^{18} + 187 x^{16} - 824 x^{14} + 2087 x^{12} - 3146 x^{10} + 2808 x^{8} - 1426 x^{6} + 377 x^{4} - 42 x^{2} + 1$ $2^{40}\cdot 36497^{4}$ $C_2\wr S_5$ (as 20T279) trivial $455671577.058$
20.20.243...896.1 $x^{20} - 22 x^{18} + 191 x^{16} - 848 x^{14} + 2111 x^{12} - 3042 x^{10} + 2520 x^{8} - 1148 x^{6} + 265 x^{4} - 28 x^{2} + 1$ $2^{40}\cdot 38569^{4}$ $C_2\wr S_5$ (as 20T279) trivial $431878281.772$
20.20.257...625.1 $x^{20} - 4 x^{19} - 22 x^{18} + 84 x^{17} + 203 x^{16} - 662 x^{15} - 1043 x^{14} + 2502 x^{13} + 3127 x^{12} - 4870 x^{11} - 5200 x^{10} + 5134 x^{9} + 4712 x^{8} - 2917 x^{7} - 2259 x^{6} + 818 x^{5} + 534 x^{4} - 84 x^{3} - 54 x^{2} + 1$ $5^{10}\cdot 460181^{2}\cdot 1114969^{2}$ $C_2\times S_{10}$ (as 20T1021) trivial $451418457.714$
20.20.261...625.1 $x^{20} - 5 x^{19} - 17 x^{18} + 104 x^{17} + 108 x^{16} - 894 x^{15} - 253 x^{14} + 4107 x^{13} - 396 x^{12} - 10913 x^{11} + 3697 x^{10} + 16864 x^{9} - 8756 x^{8} - 14287 x^{7} + 9640 x^{6} + 5587 x^{5} - 4819 x^{4} - 514 x^{3} + 846 x^{2} - 100 x - 1$ $5^{10}\cdot 401^{9}$ $C_5:D_4$ (as 20T7) trivial $481290724.965$
20.20.305...000.1 $x^{20} - 20 x^{18} + 170 x^{16} - 800 x^{14} + 2275 x^{12} - 4005 x^{10} + 4300 x^{8} - 2675 x^{6} + 875 x^{4} - 125 x^{2} + 5$ $2^{20}\cdot 5^{35}$ $C_{20}$ (as 20T1) trivial $550507572.449$
20.20.315...976.1 $x^{20} - 2 x^{19} - 32 x^{18} + 70 x^{17} + 385 x^{16} - 936 x^{15} - 2110 x^{14} + 6016 x^{13} + 4715 x^{12} - 19030 x^{11} - 340 x^{10} + 26928 x^{9} - 9892 x^{8} - 14294 x^{7} + 6850 x^{6} + 3640 x^{5} - 1617 x^{4} - 514 x^{3} + 126 x^{2} + 36 x + 1$ $2^{30}\cdot 11^{18}\cdot 23^{2}$ $C_2^5:C_{10}$ (as 20T86) trivial $561363191.152$
20.20.316...281.1 $x^{20} - 7 x^{19} - 12 x^{18} + 158 x^{17} - 22 x^{16} - 1371 x^{15} + 815 x^{14} + 5755 x^{13} - 3754 x^{12} - 12200 x^{11} + 6629 x^{10} + 13087 x^{9} - 5692 x^{8} - 7261 x^{7} + 2391 x^{6} + 2072 x^{5} - 418 x^{4} - 294 x^{3} + 17 x^{2} + 16 x + 1$ $11^{16}\cdot 43^{4}\cdot 67^{4}$ $C_2\wr C_5$ (as 20T41) trivial $506580279.946$
20.20.316...281.2 $x^{20} - 2 x^{19} - 33 x^{18} + 54 x^{17} + 399 x^{16} - 470 x^{15} - 2298 x^{14} + 1592 x^{13} + 6862 x^{12} - 2024 x^{11} - 10603 x^{10} + 385 x^{9} + 8089 x^{8} + 480 x^{7} - 3142 x^{6} - 173 x^{5} + 625 x^{4} + 2 x^{3} - 55 x^{2} + 3 x + 1$ $11^{16}\cdot 43^{4}\cdot 67^{4}$ $C_2\wr C_5$ (as 20T41) trivial $500606346.877$
20.20.320...625.1 $x^{20} - x^{19} - 31 x^{18} + 30 x^{17} + 368 x^{16} - 338 x^{15} - 2132 x^{14} + 1794 x^{13} + 6524 x^{12} - 4730 x^{11} - 11153 x^{10} + 6622 x^{9} + 10781 x^{8} - 4995 x^{7} - 5641 x^{6} + 1922 x^{5} + 1391 x^{4} - 316 x^{3} - 108 x^{2} + 12 x + 1$ $3^{10}\cdot 5^{10}\cdot 11^{18}$ $C_2\times C_{10}$ (as 20T3) trivial $527561758.587$
20.20.372...625.1 $x^{20} - 2 x^{19} - 35 x^{18} + 82 x^{17} + 414 x^{16} - 1076 x^{15} - 2213 x^{14} + 6605 x^{13} + 5177 x^{12} - 20965 x^{11} - 1727 x^{10} + 33661 x^{9} - 12282 x^{8} - 23057 x^{7} + 16581 x^{6} + 3122 x^{5} - 5900 x^{4} + 1710 x^{3} - 71 x^{2} - 25 x + 1$ $5^{10}\cdot 11^{16}\cdot 43^{2}\cdot 67^{2}$ $C_2^5:C_{10}$ (as 20T86) trivial $518758634.936$
20.20.416...625.1 $x^{20} - x^{19} - 28 x^{18} + 27 x^{17} + 283 x^{16} - 234 x^{15} - 1349 x^{14} + 832 x^{13} + 3440 x^{12} - 1390 x^{11} - 4960 x^{10} + 1063 x^{9} + 4058 x^{8} - 236 x^{7} - 1798 x^{6} - 101 x^{5} + 385 x^{4} + 44 x^{3} - 33 x^{2} - 3 x + 1$ $5^{10}\cdot 37^{2}\cdot 47^{2}\cdot 239^{2}\cdot 1571417^{2}$ $C_2\times S_{10}$ (as 20T1021) trivial $642227718.776$
20.20.439...361.1 $x^{20} - x^{19} - 19 x^{18} + 18 x^{17} + 153 x^{16} - 136 x^{15} - 680 x^{14} + 560 x^{13} + 1820 x^{12} - 1365 x^{11} - 3003 x^{10} + 2002 x^{9} + 3003 x^{8} - 1716 x^{7} - 1716 x^{6} + 792 x^{5} + 495 x^{4} - 165 x^{3} - 55 x^{2} + 10 x + 1$ $41^{19}$ $C_{20}$ (as 20T1) trivial $592074817.62$
20.20.447...984.1 $x^{20} - 20 x^{18} + 164 x^{16} - 715 x^{14} + 1798 x^{12} - 2644 x^{10} + 2204 x^{8} - 979 x^{6} + 226 x^{4} - 25 x^{2} + 1$ $2^{20}\cdot 11^{16}\cdot 23^{2}\cdot 419^{2}$ $C_2^{10}:C_5$ (as 20T341) trivial $778675864.352$
20.20.488...273.1 $x^{20} - 4 x^{19} - 25 x^{18} + 117 x^{17} + 180 x^{16} - 1199 x^{15} - 186 x^{14} + 5483 x^{13} - 2045 x^{12} - 12596 x^{11} + 7421 x^{10} + 15113 x^{9} - 9814 x^{8} - 9236 x^{7} + 5722 x^{6} + 2421 x^{5} - 1409 x^{4} - 79 x^{3} + 122 x^{2} - 20 x + 1$ $61^{7}\cdot 397^{7}$ $S_5$ (as 20T30) trivial $694470597.337$
20.20.512...784.1 $x^{20} - 5 x^{19} - 19 x^{18} + 144 x^{17} - 31 x^{16} - 1243 x^{15} + 2007 x^{14} + 3194 x^{13} - 10432 x^{12} + 2786 x^{11} + 14980 x^{10} - 12326 x^{9} - 7448 x^{8} + 10638 x^{7} + 704 x^{6} - 3796 x^{5} + 355 x^{4} + 601 x^{3} - 79 x^{2} - 34 x + 4$ $2^{24}\cdot 83^{6}\cdot 983^{4}$ $C_3^5.D_6$ (as 20T669) trivial $1022287661.23$
20.20.611...256.1 $x^{20} - 20 x^{18} + 169 x^{16} - 784 x^{14} + 2172 x^{12} - 3664 x^{10} + 3683 x^{8} - 2072 x^{6} + 575 x^{4} - 60 x^{2} + 1$ $2^{40}\cdot 11^{18}$ $C_2\times C_{10}$ (as 20T3) trivial $659839531.614$
20.20.611...625.1 $x^{20} - 33 x^{18} - 8 x^{17} + 450 x^{16} + 197 x^{15} - 3262 x^{14} - 1894 x^{13} + 13516 x^{12} + 8956 x^{11} - 32275 x^{10} - 21581 x^{9} + 43333 x^{8} + 24983 x^{7} - 31327 x^{6} - 12012 x^{5} + 10432 x^{4} + 1475 x^{3} - 725 x^{2} - 76 x + 1$ $3^{4}\cdot 5^{14}\cdot 23^{4}\cdot 89^{7}$ $D_4\times S_5$ (as 20T174) trivial $729718318.944$
20.20.706...664.1 $x^{20} - 23 x^{18} + 220 x^{16} - 1138 x^{14} + 3470 x^{12} - 6387 x^{10} + 7010 x^{8} - 4398 x^{6} + 1448 x^{4} - 213 x^{2} + 11$ $2^{20}\cdot 11\cdot 17^{4}\cdot 157^{2}\cdot 4153^{4}$ $C_2^{10}.C_2\wr S_5$ (as 20T1015) trivial $881931589.444$
20.20.847...000.1 $x^{20} - 25 x^{18} + 235 x^{16} - 2 x^{15} - 1080 x^{14} + 10 x^{13} + 2645 x^{12} - 10 x^{11} - 3557 x^{10} - 10 x^{9} + 2645 x^{8} + 10 x^{7} - 1080 x^{6} - 2 x^{5} + 235 x^{4} - 25 x^{2} + 1$ $2^{16}\cdot 5^{22}\cdot 7^{8}\cdot 97^{2}$ $C_2\wr F_5$ (as 20T140) trivial $1560367593.53$
20.20.100...353.1 $x^{20} - x^{19} - 33 x^{18} + 48 x^{17} + 398 x^{16} - 758 x^{15} - 2109 x^{14} + 5370 x^{13} + 4019 x^{12} - 18033 x^{11} + 3882 x^{10} + 25627 x^{9} - 20370 x^{8} - 8176 x^{7} + 14111 x^{6} - 2752 x^{5} - 1888 x^{4} + 657 x^{3} + 22 x^{2} - 17 x + 1$ $17^{15}\cdot 37^{8}$ $C_2\times F_5$ (as 20T9) trivial $1110509306.59$
20.20.108...000.1 $x^{20} - 21 x^{18} + 188 x^{16} - 936 x^{14} + 2834 x^{12} - 5359 x^{10} + 6256 x^{8} - 4300 x^{6} + 1580 x^{4} - 253 x^{2} + 11$ $2^{20}\cdot 5^{10}\cdot 11^{3}\cdot 28162171^{2}$ $C_2^{10}.S_5\wr C_2$ (as 20T1045) trivial $1012902429.64$
20.20.121...504.1 $x^{20} - 24 x^{18} + 231 x^{16} - 1156 x^{14} + 3282 x^{12} - 5426 x^{10} + 5186 x^{8} - 2774 x^{6} + 769 x^{4} - 94 x^{2} + 4$ $2^{38}\cdot 83^{4}\cdot 983^{4}$ $C_4^4:S_5$ (as 20T568) trivial $1312182875.65$
20.20.124...889.1 $x^{20} - 2 x^{19} - 35 x^{18} + 89 x^{17} + 396 x^{16} - 1294 x^{15} - 1418 x^{14} + 7492 x^{13} - 955 x^{12} - 17991 x^{11} + 12766 x^{10} + 15564 x^{9} - 17904 x^{8} - 2769 x^{7} + 8376 x^{6} - 1592 x^{5} - 1061 x^{4} + 331 x^{3} + 29 x^{2} - 15 x + 1$ $17^{2}\cdot 401^{11}$ $C_2^5.D_5$ (as 20T84) trivial $1370360256.02$
20.20.132...000.1 $x^{20} - 8 x^{19} - 2 x^{18} + 156 x^{17} - 258 x^{16} - 858 x^{15} + 2080 x^{14} + 1992 x^{13} - 6342 x^{12} - 2464 x^{11} + 9113 x^{10} + 2464 x^{9} - 6342 x^{8} - 1992 x^{7} + 2080 x^{6} + 858 x^{5} - 258 x^{4} - 156 x^{3} - 2 x^{2} + 8 x + 1$ $2^{30}\cdot 5^{14}\cdot 1193^{4}$ $D_5^2.C_2^2$ (as 20T96) trivial $1535334579.76$
20.20.164...841.1 $x^{20} - 10 x^{19} + 23 x^{18} + 78 x^{17} - 374 x^{16} - 68 x^{15} + 2158 x^{14} - 1268 x^{13} - 6826 x^{12} + 6168 x^{11} + 13595 x^{10} - 13443 x^{9} - 18152 x^{8} + 15876 x^{7} + 16282 x^{6} - 9819 x^{5} - 8935 x^{4} + 2606 x^{3} + 2334 x^{2} - 226 x - 211$ $17783^{2}\cdot 16604761\cdot 55968823^{2}$ $C_2^{10}.S_{10}$ (as 20T1110) trivial $1116162806.32$
20.20.169...609.1 $x^{20} - 4 x^{19} - 28 x^{18} + 105 x^{17} + 313 x^{16} - 1091 x^{15} - 1758 x^{14} + 5752 x^{13} + 5124 x^{12} - 16433 x^{11} - 7177 x^{10} + 25301 x^{9} + 3507 x^{8} - 20001 x^{7} + 1135 x^{6} + 7243 x^{5} - 1348 x^{4} - 895 x^{3} + 277 x^{2} - 13 x - 1$ $397^{2}\cdot 401^{10}$ $C_2\wr D_5$ (as 20T81) trivial $1861846863.26$
20.20.180...000.1 $x^{20} - 5 x^{19} - 35 x^{18} + 215 x^{17} + 120 x^{16} - 2121 x^{15} + 1735 x^{14} + 7145 x^{13} - 11480 x^{12} - 5515 x^{11} + 19881 x^{10} - 5515 x^{9} - 11480 x^{8} + 7145 x^{7} + 1735 x^{6} - 2121 x^{5} + 120 x^{4} + 215 x^{3} - 35 x^{2} - 5 x + 1$ $2^{16}\cdot 3^{10}\cdot 5^{31}$ $F_5$ (as 20T5) trivial $2193798277.46$
20.20.182...125.1 $x^{20} - x^{19} - 35 x^{18} + 21 x^{17} + 470 x^{16} - 203 x^{15} - 3217 x^{14} + 1178 x^{13} + 12340 x^{12} - 4086 x^{11} - 27187 x^{10} + 7734 x^{9} + 33940 x^{8} - 7178 x^{7} - 22623 x^{6} + 2714 x^{5} + 7041 x^{4} - 340 x^{3} - 845 x^{2} + 25$ $5^{13}\cdot 419^{4}\cdot 695771^{2}$ $C_2^8.S_5^2:C_4$ (as 20T1039) trivial $1403204921.34$
20.20.184...000.1 $x^{20} - 40 x^{18} + 660 x^{16} - 5800 x^{14} + 29320 x^{12} - 86420 x^{10} + 145120 x^{8} - 130160 x^{6} + 55120 x^{4} - 8800 x^{2} + 80$ $2^{28}\cdot 5^{23}\cdot 7^{8}$ $C_2\times F_5$ (as 20T9) trivial $1931821970.59$
20.20.193...000.1 $x^{20} - 2 x^{19} - 32 x^{18} + 50 x^{17} + 396 x^{16} - 494 x^{15} - 2496 x^{14} + 2434 x^{13} + 8869 x^{12} - 6324 x^{11} - 18596 x^{10} + 8580 x^{9} + 23081 x^{8} - 5240 x^{7} - 16182 x^{6} + 300 x^{5} + 5588 x^{4} + 832 x^{3} - 634 x^{2} - 140 x + 5$ $2^{20}\cdot 5^{10}\cdot 17^{6}\cdot 23^{8}$ $C_2\times S_5$ (as 20T62) trivial $2648617715.6$
20.20.196...536.1 $x^{20} - 2 x^{19} - 32 x^{18} + 64 x^{17} + 413 x^{16} - 826 x^{15} - 2777 x^{14} + 5546 x^{13} + 10546 x^{12} - 20970 x^{11} - 23116 x^{10} + 45532 x^{9} + 28870 x^{8} - 55732 x^{7} - 19678 x^{6} + 36176 x^{5} + 6510 x^{4} - 10466 x^{3} - 737 x^{2} + 678 x + 1$ $2^{12}\cdot 11^{8}\cdot 29^{2}\cdot 113^{8}$ $C_3^5.D_6$ (as 20T561) trivial $1926196212.49$
20.20.243...936.1 $x^{20} - 10 x^{19} + 17 x^{18} + 122 x^{17} - 413 x^{16} - 412 x^{15} + 2668 x^{14} - 6 x^{13} - 8161 x^{12} + 2452 x^{11} + 13443 x^{10} - 4478 x^{9} - 12172 x^{8} + 2810 x^{7} + 5842 x^{6} - 450 x^{5} - 1317 x^{4} - 84 x^{3} + 104 x^{2} + 20 x + 1$ $2^{30}\cdot 7^{8}\cdot 13^{14}$ $C_2\times F_5$ (as 20T13) trivial $2218512101.18$
20.20.324...401.1 $x^{20} - 4 x^{19} - 30 x^{18} + 104 x^{17} + 412 x^{16} - 1026 x^{15} - 3328 x^{14} + 4417 x^{13} + 15997 x^{12} - 4955 x^{11} - 40546 x^{10} - 18016 x^{9} + 38071 x^{8} + 41423 x^{7} + 6152 x^{6} - 9501 x^{5} - 5039 x^{4} - 725 x^{3} + 54 x^{2} + 19 x + 1$ $3^{4}\cdot 61^{2}\cdot 401^{10}$ $C_2\wr D_5$ (as 20T81) trivial $2239930591.43$
20.20.419...264.1 $x^{20} - 28 x^{18} + 315 x^{16} - 1876 x^{14} + 6591 x^{12} - 14324 x^{10} + 19459 x^{8} - 16156 x^{6} + 7690 x^{4} - 1840 x^{2} + 169$ $2^{40}\cdot 3^{10}\cdot 71^{8}$ $C_5\times D_{10}$ (as 20T24) trivial $1771371001.17$
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