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Label Polynomial Discriminant Galois group Class group Regulator
20.0.267...376.1 x20 - 2x19 + 6x16 - 18x15 + 17x14 + 4x13 + 25x12 - 92x11 + 92x10 - 34x9 + 44x8 - 140x7 + 188x6 - 144x5 + 88x4 - 54x3 + 27x2 - 8x + 1 $2^{20}\cdot 761^{5}$ $D_5\wr C_2$ (as 20T48) trivial $99.9526828541$
20.0.287...032.1 x20 - 4x19 + 6x18 - 4x17 - 2x16 + 10x15 - 10x14 - 12x13 + 43x12 - 38x11 + 21x10 - 38x9 + 43x8 - 12x7 - 10x6 + 10x5 - 2x4 - 4x3 + 6x2 - 4x + 1 $2^{30}\cdot 193^{5}$ $D_5\wr C_2$ (as 20T48) trivial $52.0455573525$
20.0.362...561.1 x20 - x19 + 3x18 - 4x17 + 5x16 - 7x15 + 8x14 - x13 + 8x12 - 3x11 + 3x10 + 3x9 - 13x8 + 17x7 + 8x6 - 8x5 + x4 + 4x3 + 1 $47^{10}\cdot 83^{2}$ $C_2\times C_2^4:D_5$ (as 20T81) trivial $59.602445011$
20.0.369...048.1 x20 - 7x19 + 26x18 - 64x17 + 116x16 - 153x15 + 128x14 - 4x13 - 199x12 + 398x11 - 478x10 + 372x9 - 118x8 - 158x7 + 328x6 - 344x5 + 249x4 - 129x3 + 46x2 - 10x + 1 $2^{16}\cdot 3^{10}\cdot 157^{5}$ $D_5\wr C_2$ (as 20T48) trivial $182.345344476$
20.0.379...597.1 x20 - 5x19 + 6x18 + 14x17 - 46x16 + 25x15 + 73x14 - 122x13 - 8x12 + 193x11 - 146x10 - 144x9 + 308x8 - 127x7 - 128x6 + 161x5 - 46x4 - 26x3 + 25x2 - 8x + 1 $3^{15}\cdot 31^{9}$ $C_5\times C_5:D_4$ (as 20T53) trivial $181.753135766$
20.0.405...161.1 x20 - 6x19 + 23x18 - 66x17 + 154x16 - 304x15 + 519x14 - 778x13 + 1036x12 - 1233x11 + 1317x10 - 1265x9 + 1093x8 - 845x7 + 580x6 - 349x5 + 180x4 - 76x3 + 25x2 - 6x + 1 $7^{2}\cdot 53^{6}\cdot 139^{4}$ 20T799 trivial $62.9466310057$
20.0.540...000.1 x20 - 3x19 + 7x18 - 5x17 + 4x16 + 11x15 - 9x14 + 21x13 + 18x12 - 9x11 + 49x10 - 9x9 + 18x8 + 21x7 - 9x6 + 11x5 + 4x4 - 5x3 + 7x2 - 3x + 1 $2^{16}\cdot 5^{10}\cdot 61^{5}$ $D_5\wr C_2$ (as 20T48) trivial $75.025557452$
20.0.569...801.1 x20 - 4x19 + 8x18 - 12x17 + 6x16 + 11x15 - 13x14 - 4x13 + 37x12 - 63x11 + 41x10 + 4x9 + 12x8 - 58x7 + 30x6 + 7x5 + 9x4 - 12x3 + 1 $7^{10}\cdot 17^{10}$ $D_{10}$ (as 20T4) trivial $77.3255035829$
20.0.602...001.1 x20 - 3x19 + 4x18 - 5x17 + 9x16 - 8x15 + 9x14 - 16x13 + 11x12 - 10x11 + 17x10 - 10x9 + 11x8 - 16x7 + 9x6 - 8x5 + 9x4 - 5x3 + 4x2 - 3x + 1 $47^{10}\cdot 107^{2}$ $C_2\times C_2^4:D_5$ (as 20T81) trivial $79.7167288943$
20.0.682...416.1 x20 - 2x19 + x18 - 3x17 + 6x16 - x15 + 3x14 - 11x13 - x12 + 6x11 + 7x10 - 5x9 + 9x8 - 16x7 - x6 + x5 + 8x4 + 4x3 + 7x2 - 3x + 1 $2^{10}\cdot 7^{10}\cdot 11^{9}$ $C_5\times C_5:D_4$ (as 20T53) trivial $87.3510823497$
20.0.684...976.1 x20 - 2x18 + x16 + 2x14 - 4x10 - x8 + 6x6 - x4 - 2x2 + 1 $2^{30}\cdot 798143^{2}$ 20T1021 trivial $171.360926564$
20.0.695...025.1 x20 - 5x19 + 12x18 - 18x17 + 20x16 - 23x15 + 33x14 - 44x13 + 47x12 - 51x11 + 78x10 - 122x9 + 143x8 - 115x7 + 61x6 - 22x5 + 10x4 - 9x3 + 6x2 - 2x + 1 $5^{2}\cdot 23^{2}\cdot 47^{10}$ 20T412 trivial $86.800744447$
20.0.709...856.1 x20 - 5x19 + 15x18 - 37x17 + 78x16 - 139x15 + 219x14 - 307x13 + 386x12 - 442x11 + 463x10 - 442x9 + 386x8 - 307x7 + 219x6 - 139x5 + 78x4 - 37x3 + 15x2 - 5x + 1 $2^{4}\cdot 83^{4}\cdot 983^{4}$ 20T669 trivial $103.364702597$
20.0.715...000.1 x20 + 2x18 + 2x16 + 4x14 + 11x12 + 14x10 + 11x8 + 6x6 + 5x4 + 4x2 + 1 $2^{10}\cdot 5^{4}\cdot 5783^{4}$ 20T964 trivial $87.5155752534$
20.0.750...776.1 x20 + x16 + 5x12 + 10x10 + 9x8 + 7x6 + 3x4 + 4x2 + 1 $2^{8}\cdot 41381^{4}$ 20T673 trivial $91.2702526158$
20.0.781...000.1 x20 - 5x19 + 5x18 + 15x17 - 30x16 - 21x15 + 75x14 + 15x13 - 120x12 - 5x11 + 141x10 - 5x9 - 120x8 + 15x7 + 75x6 - 21x5 - 30x4 + 15x3 + 5x2 - 5x + 1 $2^{16}\cdot 5^{23}$ $F_5$ (as 20T5) trivial $525.931286845$
20.0.902...129.1 x20 + x18 - 6x17 - x16 - 4x15 + 15x14 + 7x13 + 10x12 - 17x11 - 11x10 - 17x9 + 10x8 + 7x7 + 15x6 - 4x5 - x4 - 6x3 + x2 + 1 $3^{10}\cdot 11119^{4}$ 20T279 trivial $293.866842819$
20.0.908...736.1 x20 + 7x18 + 22x16 + 42x14 + 59x12 + 65x10 + 55x8 + 36x6 + 17x4 + 6x2 + 1 $2^{10}\cdot 47^{8}\cdot 193^{2}$ 20T853 trivial $99.8204300191$
20.0.921...449.1 x20 - 2x19 - x18 + 5x17 - 2x16 - 3x15 + 7x14 - 24x13 + 51x12 - 67x11 + 79x10 - 95x9 + 96x8 - 81x7 + 68x6 - 53x5 + 34x4 - 20x3 + 11x2 - 4x + 1 $79\cdot 151\cdot 278005859^{2}$ 20T1110 trivial $104.951823132$
20.0.960...576.1 x20 + 2x18 + x14 + 7x12 - 6x10 + 7x8 + x6 + 2x2 + 1 $2^{20}\cdot 5501^{4}$ 20T669 trivial $103.153871476$
20.0.108...241.1 x20 - 4x19 + 10x18 - 17x17 + 26x16 - 29x15 + 24x14 - 5x13 - 7x12 + 20x11 - 14x10 + 8x9 + 12x8 + x7 - 6x6 + 9x5 + 9x4 - 2x3 - x2 + x + 1 $37^{4}\cdot 4903^{4}$ 20T669 trivial $109.689161601$
20.0.124...125.1 x20 - x19 + x18 - 2x17 + 2x16 - 5x15 + 5x14 - 4x13 + 5x12 - 3x11 + 12x10 - 8x9 + 2x8 - 6x7 - x6 - 10x5 + 6x4 + 3x3 + 2x2 + x + 1 $3^{4}\cdot 5^{17}\cdot 67^{4}$ $C_4\times S_5$ (as 20T123) trivial $676.304774$
20.0.126...424.1 x20 + 5x18 + 14x16 + 27x14 + 41x12 + 53x10 + 55x8 + 43x6 + 22x4 + 7x2 + 1 $2^{10}\cdot 3^{4}\cdot 11119^{4}$ 20T964 trivial $117.777592282$
20.0.143...464.1 x20 - 5x19 + 11x18 - 11x17 - x16 + 16x15 - 20x14 + 11x13 + 5x12 - 20x11 + 27x10 - 2x9 - 22x8 + 40x7 - 9x6 - 5x5 + 17x4 - 7x3 + 5x2 - 3x + 1 $2^{10}\cdot 31^{3}\cdot 2617^{4}$ 20T1015 trivial $130.791344738$
20.0.159...669.1 x20 - 6x19 + 11x18 - 13x16 - 19x15 + 50x14 + 8x13 - 42x12 - 38x11 + 42x10 + 31x9 + 17x8 - 59x7 + 6x6 + 2x5 - x4 + 15x3 - 2x2 - 3x + 1 $3^{10}\cdot 1609^{4}\cdot 4021$ 20T887 trivial $427.42684139$
20.0.160...377.1 x20 - x19 + 5x18 - 3x17 + 9x16 - x15 + 7x14 + 4x13 + 4x12 + 5x11 + 4x10 + 3x9 + 6x8 + 5x6 + 2x5 - x4 + 3x3 + 1 $28753\cdot 236438047^{2}$ 20T1110 trivial $140.247818215$
20.0.161...304.1 x20 + 4x16 - 4x12 + 4x8 - 8x4 + 4 $2^{38}\cdot 277^{4}$ 20T279 trivial $476.032179845$
20.0.172...632.1 x20 - x19 + x18 - 4x17 - 3x16 + 15x15 + 3x14 - 28x13 + 2x12 + 19x11 + 29x10 - 56x9 + 17x8 - 3x7 + 26x6 - 34x5 + 37x4 - 35x3 + 21x2 - 7x + 1 $2^{15}\cdot 47^{10}$ $C_5:D_4$ (as 20T11) trivial $143.606119616$
20.2.181...944.1 x20 - 6x16 + 11x12 + 3x10 - 17x8 + 6x6 + 2x2 - 1 $-\,2^{10}\cdot 36497^{4}$ 20T992 trivial $201.865023128$
20.0.208...625.1 x20 - 4x19 + 9x18 - 14x17 + 19x16 - 29x15 + 45x14 - 60x13 + 64x12 - 62x11 + 65x10 - 52x9 + 42x8 - 47x7 + 35x6 - 24x5 + 22x4 - 11x3 + 4x2 - 3x + 1 $3^{10}\cdot 5^{8}\cdot 67^{6}$ 20T288 trivial $527.926443922$
20.0.219...184.1 x20 - 5x19 + 11x18 - 11x17 - 2x16 + 16x15 - 2x14 - 24x13 + 22x12 + 8x11 - 22x10 - 13x9 + 14x8 + 3x7 + x6 + 15x5 + 20x4 + 9x3 + 3x2 + 2x + 1 $2^{10}\cdot 7^{6}\cdot 23^{2}\cdot 431^{4}$ 20T994 trivial $166.624941197$
20.2.226...904.1 x20 + x18 - 4x16 - 7x14 - x12 + 21x10 + 3x8 - 13x6 - 4x4 + 3x2 - 1 $-\,2^{10}\cdot 38569^{4}$ 20T992 trivial $228.08067214$
20.0.238...224.1 x20 + 5x18 + 12x16 + 19x14 + 28x12 + 50x10 + 70x8 + 62x6 + 32x4 + 9x2 + 1 $2^{10}\cdot 17^{4}\cdot 2297^{4}$ 20T964 trivial $176.861949817$
20.0.239...125.1 x20 - 3x19 + 9x18 - 18x17 + 34x16 - 53x15 + 77x14 - 97x13 + 114x12 - 121x11 + 116x10 - 104x9 + 79x8 - 56x7 + 33x6 - 19x5 + 12x4 - 7x3 + 5x2 - 2x + 1 $5^{15}\cdot 280001^{2}$ 20T654 trivial $858.376938924$
20.0.246...125.1 x20 - x19 - x16 - 2x15 + 4x14 - x13 + x12 + x11 + 4x10 - 8x9 + 2x8 - x7 - 2x6 - x5 + 8x4 - 5x3 + 3x2 - 2x + 1 $5^{15}\cdot 13^{4}\cdot 41^{4}$ $C_4\times S_5$ (as 20T123) trivial $887.733037213$
20.0.250...000.1 x20 - 4x19 + 7x18 - 6x17 - 2x16 + 6x15 + 14x14 - 54x13 + 64x12 + 24x11 - 190x10 + 290x9 - 169x8 - 154x7 + 464x6 - 554x5 + 417x4 - 208x3 + 66x2 - 12x + 1 $2^{20}\cdot 5^{22}$ $C_{10}\times D_5$ (as 20T24) trivial $397.737246993$
20.0.253...272.1 x20 - x19 - 3x18 + 7x17 + 2x16 - 17x15 + 19x14 - 17x12 + 9x11 + 34x10 - 34x9 - x8 + 32x7 - 4x6 + 4x5 + 3x3 - 3x + 1 $2^{10}\cdot 47^{11}$ 20T423 trivial $179.782999261$
20.0.261...125.1 x20 - 3x19 + 9x18 - 18x17 + 33x16 - 50x15 + 73x14 - 93x13 + 118x12 - 128x11 + 135x10 - 112x9 + 88x8 - 48x7 + 27x6 - 10x5 + 10x4 - 6x3 + 6x2 - 2x + 1 $5^{15}\cdot 199^{2}\cdot 1471^{2}$ 20T654 trivial $906.492535524$
20.0.278...609.1 x20 - 2x19 + 3x18 - 12x17 + 27x16 - 39x15 + 68x14 - 127x13 + 178x12 - 215x11 + 277x10 - 328x9 + 297x8 - 211x7 + 139x6 - 82x5 + 29x4 + x3 - 3x2 - x + 1 $7^{2}\cdot 53^{4}\cdot 139^{6}$ 20T799 trivial $192.366272752$
20.0.282...373.1 x20 - 7x19 + 24x18 - 52x17 + 75x16 - 58x15 - 28x14 + 140x13 - 109x12 - 274x11 + 1033x10 - 1874x9 + 2367x8 - 2282x7 + 1739x6 - 1057x5 + 509x4 - 190x3 + 53x2 - 10x + 1 $3^{10}\cdot 37^{5}\cdot 109^{2}\cdot 241^{2}$ 20T781 trivial $567.746569822$
20.0.290...573.1 x20 - 3x19 + 3x18 - 3x17 + 8x16 - 13x15 + 16x14 - 18x13 + 22x12 - 30x11 + 32x10 - 25x9 + 18x8 - 17x7 + 25x6 - 31x5 + 29x4 - 21x3 + 11x2 - 4x + 1 $67\cdot 83^{2}\cdot 631\cdot 1777^{4}$ 20T1015 trivial $194.247728439$
20.0.294...449.1 x20 - 6x19 + 24x18 - 72x17 + 177x16 - 363x15 + 637x14 - 973x13 + 1307x12 - 1556x11 + 1649x10 - 1556x9 + 1307x8 - 973x7 + 637x6 - 363x5 + 177x4 - 72x3 + 24x2 - 6x + 1 $11^{18}\cdot 23^{2}$ $C_2^2\times C_2^4:C_5$ (as 20T86) trivial $2189.13991382$
20.2.294...176.1 x20 + 3x18 + 4x16 + x14 - 3x12 - 6x10 - 9x8 - 13x6 - 12x4 - 6x2 - 1 $-\,2^{12}\cdot 41^{2}\cdot 4549^{4}$ 20T1015 trivial $265.437747416$
20.0.294...176.1 x20 + 6x18 + 18x16 + 39x14 + 65x12 + 73x10 + 45x8 + 4x6 - 11x4 - 2x2 + 1 $2^{12}\cdot 41^{2}\cdot 4549^{4}$ 20T799 trivial $198.57668435$
20.0.302...896.1 x20 + x18 - 4x17 + 2x16 - 4x15 + 7x14 - 6x13 + 8x12 - 6x11 + 7x10 - 6x9 + 4x8 - 2x7 - 2x5 - x4 + x2 + 1 $2^{20}\cdot 3^{10}\cdot 220873^{2}$ 20T656 trivial $1171.34610492$
20.0.310...401.1 x20 - x19 - 5x18 + 22x16 + x15 - 38x14 - 11x13 + 46x12 + 11x11 - 51x10 + 11x9 + 46x8 - 11x7 - 38x6 + x5 + 22x4 - 5x2 - x + 1 $3^{10}\cdot 47^{10}$ $D_{10}$ (as 20T4) trivial $630.365304677$
20.0.330...241.1 x20 - 2x19 + 3x18 - 6x17 + 8x16 - 9x15 + 11x14 - 10x13 + 6x12 - 5x11 + x10 + 4x9 - 4x8 + 5x7 - 5x6 + 3x5 - x4 + x2 - x + 1 $3^{10}\cdot 236438047^{2}$ 20T1021 trivial $622.109043514$
20.0.335...752.1 x20 - 2x19 + 10x17 - 15x16 + 40x14 - 64x13 + 46x12 + 8x11 - 32x10 + 8x9 + 46x8 - 64x7 + 40x6 - 15x4 + 10x3 - 2x + 1 $2^{16}\cdot 13^{15}$ $F_5$ (as 20T5) trivial $238.906276128$
20.0.340...929.1 x20 - 2x19 + 2x18 - 4x17 + 6x16 - 4x15 + 4x14 - 7x13 + 5x12 - 6x11 + 13x10 - 14x9 + 16x8 - 22x7 + 21x6 - 17x5 + 16x4 - 11x3 + 6x2 - 3x + 1 $3^{10}\cdot 467^{2}\cdot 514417^{2}$ 20T1021 trivial $658.849285992$
20.0.357...081.1 x20 - 3x19 + 2x18 + 3x17 - 2x16 - 9x15 + 18x14 - 13x13 - x12 + 6x11 + 10x10 - 26x9 + 20x8 - 6x7 + x6 + 5x5 - 10x4 + 6x3 - 2x + 1 $3^{10}\cdot 7^{10}\cdot 11^{8}$ $C_{10}\times D_5$ (as 20T24) trivial $635.552521857$
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