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Label Polynomial $p$ $e$ $f$ $c$ Galois group Visible slopes Slope content Unram. Ext. Eisen. Poly.
2.12.12.27 $x^{12} + 4 x^{8} - 2 x^{7} + 4 x^{6} + 4 x^{4} - 4 x^{3} + 12 x^{2} - 4 x + 4$ $2$ $6$ $2$ $12$ $A_4:C_4$ (as 12T30) $[4/3]$ $[4/3, 4/3]_{3}^{4}$ $t^{2} + t + 1$ $x^{6} + 2 x^{2} + 2 t x + 2$
2.12.12.28 $x^{12} + 6 x^{11} + 21 x^{10} + 50 x^{9} + 90 x^{8} + 130 x^{7} + 159 x^{6} + 132 x^{5} + 10 x^{4} - 100 x^{3} - 53 x^{2} + 22 x + 19$ $2$ $6$ $2$ $12$ $S_4$ (as 12T9) $[4/3]$ $[4/3, 4/3]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 x + 2$
2.12.12.29 $x^{12} + 4 x^{8} + 4 x^{7} - 2 x^{6} + 4 x^{4} + 8 x^{3} - 4 x + 4$ $2$ $6$ $2$ $12$ $A_4^2:C_4$ (as 12T159) $[4/3]$ $[4/3, 4/3, 4/3, 4/3]_{3}^{12}$ $t^{2} + t + 1$ $x^{6} + 2 x^{2} + 2 x + 2 t$
2.12.12.30 $x^{12} + 4 x^{8} + 2 x^{7} - 2 x^{6} + 4 x^{4} + 4 x^{3} + 4 x + 4$ $2$ $6$ $2$ $12$ $A_4\wr C_2$ (as 12T126) $[4/3]$ $[4/3, 4/3, 4/3, 4/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{2} + \left(2 t + 2\right) x + 2 t$
2.12.16.1 $x^{12} - 2 x^{11} + 4 x^{10} + 4 x^{9} - 4 x^{7} + 10 x^{6} + 8 x^{5} + 4 x^{4} + 12 x^{3} + 12 x^{2} + 12$ $2$ $6$ $2$ $16$ $A_4^2:D_4$ (as 12T208) $[2]$ $[4/3, 4/3, 4/3, 4/3, 2, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + 2 x^{3} + 2 x^{2} + 2 t + 4$
2.12.16.10 $x^{12} - 2 x^{11} + 8 x^{10} - 2 x^{9} + 8 x^{8} + 4 x^{7} + 2 x^{6} + 8 x^{5} - 4 x^{4} + 4 x^{3} + 4$ $2$ $6$ $2$ $16$ $A_4^2:C_2^2$ (as 12T158) $[2]$ $[4/3, 4/3, 4/3, 4/3, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + 2 x^{4} + \left(2 t + 2\right) x^{3} + 2 t$
2.12.16.11 $x^{12} + 4 x^{11} + 4 x^{10} + 2 x^{9} + 8 x^{8} + 8 x^{7} + 6 x^{6} + 8 x^{5} + 4 x^{4} + 20 x^{3} + 4 x^{2} + 28$ $2$ $6$ $2$ $16$ $C_3\times (C_3 : C_4)$ (as 12T19) $[2]$ $[2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + \left(2 t + 2\right) x^{3} + 2 x^{2} + 6 t + 4$
2.12.16.12 $x^{12} - 2 x^{11} + 4 x^{10} + 2 x^{9} + 8 x^{8} - 4 x^{7} + 10 x^{6} + 4 x^{5} + 4 x^{4} + 12 x^{3} + 12 x^{2} + 12$ $2$ $6$ $2$ $16$ $A_4^2:C_4$ (as 12T159) $[2]$ $[4/3, 4/3, 4/3, 4/3, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + \left(2 t + 2\right) x^{3} + 2 x^{2} + 2 t + 4$
2.12.16.13 $x^{12} + 10 x^{11} + 47 x^{10} + 144 x^{9} + 330 x^{8} + 578 x^{7} + 785 x^{6} + 830 x^{5} + 530 x^{4} - 64 x^{3} - 189 x^{2} - 30 x + 25$ $2$ $6$ $2$ $16$ $D_6$ (as 12T3) $[2]$ $[2]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 x^{3} + 2 x^{2} + 6$
2.12.16.14 $x^{12} - 2 x^{11} + 4 x^{10} - 2 x^{9} + 12 x^{8} - 4 x^{7} + 10 x^{6} - 4 x^{5} + 4 x^{4} + 12 x^{2} + 12$ $2$ $6$ $2$ $16$ $A_4^2:D_4$ (as 12T208) $[2]$ $[4/3, 4/3, 4/3, 4/3, 2, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + 2 t x^{3} + 2 x^{2} + 2 t + 4$
2.12.16.15 $x^{12} + 2 x^{10} - 2 x^{9} + 8 x^{8} + 4 x^{7} + 12 x^{6} - 4 x^{5} + 8 x^{4} - 4 x^{3} + 8 x^{2} + 4$ $2$ $6$ $2$ $16$ $\GL(2,\mathbb{Z}/4)$ (as 12T50) $[2]$ $[4/3, 4/3, 2, 2]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + \left(2 t + 2\right) x^{4} + 2 t x^{3} + 2 x^{2} + 2$
2.12.16.16 $x^{12} + 4 x^{11} + 8 x^{10} + 12 x^{9} + 16 x^{8} + 16 x^{7} + 12 x^{6} + 8 x^{5} + 4 x^{4} + 12$ $2$ $6$ $2$ $16$ $A_4:C_4$ (as 12T30) $[2]$ $[4/3, 4/3, 2]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 x^{4} + 2 x^{3} + 2 x^{2} + 4 t + 2$
2.12.16.17 $x^{12} - 2 x^{10} - 2 x^{9} + 8 x^{8} + 8 x^{7} - 2 x^{6} - 4 x^{5} + 12 x^{4} + 8 x^{3} - 4 x^{2} + 4$ $2$ $6$ $2$ $16$ $A_4^2:D_4$ (as 12T208) $[2]$ $[4/3, 4/3, 4/3, 4/3, 2, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{4} + 2 t x^{3} + 2 x^{2} + 2 t$
2.12.16.18 $x^{12} + 4 x^{10} + 4 x^{9} + 8 x^{8} + 8 x^{7} + 12 x^{6} + 8 x^{5} + 4 x^{4} + 12$ $2$ $6$ $2$ $16$ $C_3 : C_4$ (as 12T5) $[2]$ $[2]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 x^{4} + 2 x^{3} + 2 x^{2} + 4 t + 2$
2.12.16.19 $x^{12} + 4 x^{11} + 2 x^{10} + 14 x^{8} + 8 x^{6} + 4 x^{5} + 16 x^{4} + 12 x^{2} + 12$ $2$ $6$ $2$ $16$ $C_2\times S_4$ (as 12T21) $[2]$ $[4/3, 4/3, 2]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 t x^{4} + 2 x^{3} + \left(2 t + 2\right) x^{2} + 4 t + 2$
2.12.16.2 $x^{12} - 2 x^{11} + 6 x^{10} + 2 x^{9} + 16 x^{8} + 16 x^{6} + 24 x^{4} + 4 x^{3} + 16 x^{2} + 28$ $2$ $6$ $2$ $16$ $(C_6\times C_2):C_2$ (as 12T15) $[2]$ $[2, 2]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + \left(2 t + 2\right) x^{4} + 2 t x^{3} + 2 x^{2} + 4 t + 6$
2.12.16.20 $x^{12} + 4 x^{11} + 4 x^{10} + 4 x^{9} + 12 x^{8} + 8 x^{7} + 2 x^{6} + 4 x^{5} + 4 x^{4} - 4 x^{3} - 4 x^{2} + 4$ $2$ $6$ $2$ $16$ $C_6\wr C_2$ (as 12T42) $[2]$ $[2, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 x^{3} + 2 x^{2} + 2 t$
2.12.16.3 $x^{12} + 4 x^{11} + 8 x^{10} + 10 x^{9} + 8 x^{8} + 4 x^{7} + 2 x^{6} - 4 x^{5} - 4 x^{4} + 4 x^{3} + 4$ $2$ $6$ $2$ $16$ $C_6\times S_3$ (as 12T18) $[2]$ $[2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 x^{4} + \left(2 t + 2\right) x^{3} + 2 t$
2.12.16.4 $x^{12} + 4 x^{10} + 4 x^{9} + 8 x^{8} + 8 x^{7} + 14 x^{6} + 8 x^{5} + 8 x^{4} + 4 x^{3} + 4 x^{2} + 28$ $2$ $6$ $2$ $16$ $A_4^2:D_4$ (as 12T208) $[2]$ $[4/3, 4/3, 4/3, 4/3, 2, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{4} + 2 x^{3} + 2 x^{2} + 6 t + 4$
2.12.16.5 $x^{12} + 2 x^{11} + 4 x^{10} - 2 x^{9} + 8 x^{8} + 4 x^{7} + 4 x^{6} + 8 x^{5} + 4 x^{4} + 12 x^{3} + 12$ $2$ $6$ $2$ $16$ $\GL(2,\mathbb{Z}/4)$ (as 12T50) $[2]$ $[4/3, 4/3, 2, 2]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + \left(2 t + 2\right) x^{5} + 2 t x^{3} + 2 x^{2} + 4 t + 2$
2.12.16.6 $x^{12} - 2 x^{9} - 2 x^{6} + 24 x^{3} + 36$ $2$ $6$ $2$ $16$ $C_6\wr C_2$ (as 12T42) $[2]$ $[2, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{3} + 6 t$
2.12.16.7 $x^{12} + 2 x^{11} + 6 x^{10} + 12 x^{9} + 8 x^{8} + 4 x^{7} + 6 x^{6} + 20 x^{5} + 20 x^{4} + 4 x^{3} + 28$ $2$ $6$ $2$ $16$ $C_6\wr C_2$ (as 12T42) $[2]$ $[2, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + \left(2 t + 2\right) x^{5} + \left(2 t + 2\right) x^{4} + 2 x^{3} + 6 t + 4$
2.12.16.8 $x^{12} + 2 x^{11} + 4 x^{10} - 2 x^{9} + 6 x^{8} + 8 x^{7} + 6 x^{6} + 24 x^{5} + 4 x^{4} + 16 x^{3} + 20 x^{2} + 28$ $2$ $6$ $2$ $16$ $C_6\wr C_2$ (as 12T42) $[2]$ $[2, 2]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + \left(2 t + 2\right) x^{5} + 2 t x^{3} + \left(2 t + 2\right) x^{2} + 6 t + 4$
2.12.16.9 $x^{12} - 2 x^{9} + 16 x^{6} - 12 x^{3} + 36$ $2$ $6$ $2$ $16$ $(C_6\times C_2):C_2$ (as 12T15) $[2]$ $[2, 2]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{3} + 6$
2.12.20.1 $x^{12} + 4 x^{11} + 8 x^{10} + 16 x^{9} + 24 x^{8} + 24 x^{7} + 18 x^{6} + 4 x^{5} - 8 x^{4} - 24 x^{3} - 12 x^{2} + 36$ $2$ $6$ $2$ $20$ $A_4^2:C_4$ (as 12T159) $[8/3]$ $[2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 x^{4} + 4 x^{3} + 2 x^{2} + 6 t$
2.12.20.10 $x^{12} - 2 x^{11} + 16 x^{10} - 16 x^{9} + 52 x^{8} - 12 x^{7} + 18 x^{6} + 40 x^{5} + 24 x^{4} + 32 x^{3} + 36 x^{2} + 28$ $2$ $6$ $2$ $20$ $A_4^2:D_4$ (as 12T208) $[8/3]$ $[2, 2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + 6 x^{4} + 4 t x^{3} + \left(4 t + 2\right) x^{2} + 6 t + 4$
2.12.20.11 $x^{12} + 2 x^{11} - 2 x^{10} + 12 x^{9} + 40 x^{8} + 4 x^{7} - 18 x^{6} + 12 x^{5} + 76 x^{4} - 12 x^{2} + 36$ $2$ $6$ $2$ $20$ $A_4^2:D_4$ (as 12T208) $[8/3]$ $[2, 2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + \left(2 t + 2\right) x^{5} + 6 t x^{4} + 2 x^{2} + 6 t$
2.12.20.12 $x^{12} + 4 x^{11} + 8 x^{10} + 16 x^{9} + 20 x^{8} + 16 x^{7} + 10 x^{6} - 12 x^{5} - 24 x^{3} + 36 x^{2} + 36$ $2$ $6$ $2$ $20$ $A_4^2:C_2^2$ (as 12T158) $[8/3]$ $[2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 x^{4} + 4 x^{3} + \left(4 t + 2\right) x^{2} + 6 t$
2.12.20.13 $x^{12} + 4 x^{11} + 8 x^{10} + 12 x^{9} + 12 x^{8} + 12 x^{7} + 26 x^{6} + 36 x^{5} + 48 x^{4} + 64 x^{3} + 52 x^{2} + 40 x + 28$ $2$ $6$ $2$ $20$ $A_4^2:C_4$ (as 12T159) $[8/3]$ $[8/3, 8/3, 8/3, 8/3]_{3}^{12}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 x^{4} + \left(4 t + 4\right) x^{3} + \left(4 t + 2\right) x^{2} + \left(4 t + 4\right) x + 6 t + 4$
2.12.20.14 $x^{12} + 4 x^{11} + 16 x^{10} + 24 x^{9} + 40 x^{8} + 8 x^{7} + 18 x^{6} - 12 x^{5} - 32 x^{4} - 12 x^{2} + 36$ $2$ $6$ $2$ $20$ $A_4^2:C_2^2$ (as 12T158) $[8/3]$ $[2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 6 x^{4} + 2 x^{2} + 6 t$
2.12.20.15 $x^{12} + 4 x^{11} + 16 x^{10} + 28 x^{9} + 48 x^{8} + 32 x^{7} + 52 x^{6} + 32 x^{5} + 76 x^{4} + 24 x^{3} + 24 x^{2} + 36$ $2$ $6$ $2$ $20$ $C_2^3.S_4$ (as 12T107) $[8/3]$ $[4/3, 4/3, 8/3, 8/3]_{3}^{4}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 6 x^{4} + \left(4 t + 4\right) x^{3} + 2 x^{2} + 6$
2.12.20.16 $x^{12} + 4 x^{11} + 8 x^{10} + 8 x^{9} + 24 x^{8} + 16 x^{7} + 40 x^{6} + 52 x^{4} + 24 x^{2} + 12$ $2$ $6$ $2$ $20$ $C_2\times S_4$ (as 12T21) $[8/3]$ $[2, 8/3, 8/3]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + \left(4 t + 4\right) x^{4} + \left(4 t + 6\right) x^{2} + 4 t + 2$
2.12.20.17 $x^{12} - 2 x^{11} + 8 x^{10} - 4 x^{9} + 16 x^{8} - 12 x^{7} + 26 x^{6} + 16 x^{5} + 40 x^{4} + 12 x^{2} + 28$ $2$ $6$ $2$ $20$ $A_4^2:D_4$ (as 12T208) $[8/3]$ $[2, 2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + 2 x^{4} + 6 x^{2} + 6 t + 4$
2.12.20.18 $x^{12} + 4 x^{11} + 12 x^{10} + 12 x^{9} + 24 x^{8} + 12 x^{7} + 26 x^{6} + 4 x^{5} + 80 x^{4} + 24 x^{3} + 20 x^{2} + 32 x + 28$ $2$ $6$ $2$ $20$ $A_4^2:D_4$ (as 12T208) $[8/3]$ $[2, 2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + \left(4 t + 6\right) x^{4} + 4 t x^{3} + 2 x^{2} + 4 t x + 6 t + 4$
2.12.20.19 $x^{12} - 2 x^{11} + 12 x^{10} + 12 x^{9} + 28 x^{8} + 36 x^{7} + 74 x^{6} + 48 x^{5} + 72 x^{4} + 8 x^{3} + 44 x^{2} + 28$ $2$ $6$ $2$ $20$ $A_4^2:D_4$ (as 12T208) $[8/3]$ $[2, 2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + \left(4 t + 6\right) x^{4} + 4 x^{3} + \left(4 t + 6\right) x^{2} + 6 t + 4$
2.12.20.2 $x^{12} + 4 x^{11} + 10 x^{10} + 8 x^{9} + 30 x^{8} + 24 x^{7} + 76 x^{6} + 72 x^{5} + 120 x^{4} + 40 x^{3} + 60 x^{2} + 8 x + 28$ $2$ $6$ $2$ $20$ $A_4:C_4$ (as 12T30) $[8/3]$ $[8/3, 8/3]_{3}^{4}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + \left(6 t + 6\right) x^{4} + 4 t x^{3} + \left(6 t + 4\right) x^{2} + 4 t x + 4 t + 6$
2.12.20.20 $x^{12} + 4 x^{11} + 12 x^{10} + 24 x^{9} + 48 x^{8} + 40 x^{7} + 36 x^{6} + 24 x^{5} + 20 x^{4} + 16 x^{3} + 8 x^{2} + 4$ $2$ $6$ $2$ $20$ $A_4:C_4$ (as 12T30) $[8/3]$ $[8/3, 8/3]_{3}^{4}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + \left(4 t + 6\right) x^{4} + 4 x^{3} + 2 x^{2} + 2$
2.12.20.21 $x^{12} - 2 x^{11} + 2 x^{10} + 16 x^{9} + 8 x^{8} - 20 x^{7} + 12 x^{6} + 52 x^{5} + 40 x^{4} + 32 x^{3} + 48 x^{2} + 28$ $2$ $6$ $2$ $20$ $C_2\wr S_3$ (as 12T135) $[8/3]$ $[4/3, 4/3, 2, 2, 8/3, 8/3]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + 2 t x^{4} + 4 x^{3} + 6 x^{2} + 4 t + 6$
2.12.20.22 $x^{12} - 2 x^{11} + 12 x^{10} + 4 x^{9} + 22 x^{8} + 20 x^{7} + 34 x^{6} + 8 x^{5} + 72 x^{4} + 48 x^{3} + 16 x^{2} + 12$ $2$ $6$ $2$ $20$ $A_4^2:D_4$ (as 12T208) $[8/3]$ $[2, 2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + \left(4 t + 6\right) x^{4} + 6 t x^{2} + 4 t x + 2 t + 4$
2.12.20.23 $x^{12} + 4 x^{11} + 12 x^{10} + 16 x^{9} + 32 x^{8} + 8 x^{7} + 10 x^{6} - 12 x^{5} + 16 x^{4} - 12 x^{2} + 36$ $2$ $6$ $2$ $20$ $A_4^2:C_4$ (as 12T159) $[8/3]$ $[2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + \left(4 t + 6\right) x^{4} + 2 x^{2} + 6 t$
2.12.20.24 $x^{12} - 2 x^{11} + 16 x^{10} - 16 x^{9} + 64 x^{8} - 36 x^{7} + 90 x^{6} - 8 x^{5} + 48 x^{4} + 32 x^{3} + 12 x^{2} + 28$ $2$ $6$ $2$ $20$ $A_4^2:D_4$ (as 12T208) $[8/3]$ $[2, 2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + 6 x^{4} + 4 t x^{3} + 6 x^{2} + 6 t + 4$
2.12.20.25 $x^{12} + 4 x^{11} + 12 x^{10} + 16 x^{9} + 28 x^{8} - 4 x^{7} + 24 x^{6} + 24 x^{5} + 68 x^{4} + 24 x^{3} + 40 x^{2} + 8 x + 28$ $2$ $6$ $2$ $20$ $C_2\wr S_3$ (as 12T135) $[8/3]$ $[4/3, 4/3, 2, 2, 8/3, 8/3]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + \left(4 t + 6\right) x^{4} + \left(4 t + 2\right) x^{2} + 4 t x + 4 t + 6$
2.12.20.26 $x^{12} + 4 x^{11} + 8 x^{10} + 4 x^{9} + 18 x^{6} - 20 x^{5} - 8 x^{4} + 48 x^{3} - 12 x^{2} + 36$ $2$ $6$ $2$ $20$ $A_4^2:C_4$ (as 12T159) $[8/3]$ $[2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 x^{4} + 4 t x^{3} + 2 x^{2} + 6 t$
2.12.20.27 $x^{12} - 2 x^{11} - 2 x^{10} + 28 x^{9} + 56 x^{8} + 12 x^{7} - 12 x^{6} + 28 x^{5} + 48 x^{4} + 40 x^{3} + 48 x^{2} + 28$ $2$ $6$ $2$ $20$ $\GL(2,\mathbb{Z}/4)$ (as 12T50) $[8/3]$ $[2, 2, 8/3, 8/3]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + 6 t x^{4} + \left(4 t + 4\right) x^{3} + 6 x^{2} + 4 t + 6$
2.12.20.28 $x^{12} + 4 x^{11} + 12 x^{10} + 20 x^{9} + 44 x^{8} + 56 x^{7} + 66 x^{6} + 28 x^{5} + 40 x^{4} + 24 x^{3} + 12 x^{2} + 36$ $2$ $6$ $2$ $20$ $A_4^2:C_2^2$ (as 12T158) $[8/3]$ $[2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + \left(4 t + 6\right) x^{4} + \left(4 t + 4\right) x^{3} + \left(4 t + 6\right) x^{2} + 6 t$
2.12.20.29 $x^{12} - 2 x^{11} + 10 x^{10} + 8 x^{9} + 4 x^{8} + 36 x^{7} + 36 x^{6} + 4 x^{5} + 48 x^{4} + 32 x^{3} + 24 x^{2} + 28$ $2$ $6$ $2$ $20$ $\GL(2,\mathbb{Z}/4)$ (as 12T50) $[8/3]$ $[2, 2, 8/3, 8/3]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + \left(2 t + 4\right) x^{4} + 4 x^{3} + \left(4 t + 2\right) x^{2} + 4 t + 6$
2.12.20.3 $x^{12} - 2 x^{11} + 2 x^{10} + 16 x^{9} - 4 x^{8} + 4 x^{7} + 36 x^{6} + 4 x^{5} + 16 x^{4} + 32 x^{3} + 24 x^{2} + 28$ $2$ $6$ $2$ $20$ $\GL(2,\mathbb{Z}/4)$ (as 12T50) $[8/3]$ $[2, 2, 8/3, 8/3]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + 2 t x^{4} + 4 x^{3} + \left(4 t + 2\right) x^{2} + 4 t + 6$
2.12.20.30 $x^{12} + 4 x^{11} + 8 x^{10} + 16 x^{9} + 28 x^{8} + 32 x^{7} + 26 x^{6} + 20 x^{5} + 16 x^{4} - 24 x^{3} + 12 x^{2} + 36$ $2$ $6$ $2$ $20$ $A_4^2:C_2^2$ (as 12T158) $[8/3]$ $[2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + 2 x^{5} + 2 x^{4} + 4 x^{3} + \left(4 t + 6\right) x^{2} + 6 t$
2.12.20.31 $x^{12} - 2 x^{11} + 10 x^{10} - 4 x^{9} + 32 x^{8} - 4 x^{7} + 36 x^{6} - 4 x^{5} + 40 x^{4} + 8 x^{3} + 16 x^{2} + 28$ $2$ $6$ $2$ $20$ $C_2\wr S_3$ (as 12T135) $[8/3]$ $[4/3, 4/3, 2, 2, 8/3, 8/3]_{3}^{2}$ $t^{2} + t + 1$ $x^{6} + 2 t x^{5} + \left(2 t + 4\right) x^{4} + 4 t x^{3} + 2 x^{2} + 4 t + 6$
2.12.20.32 $x^{12} + 2 x^{11} + 10 x^{10} + 20 x^{9} + 32 x^{8} + 36 x^{7} + 46 x^{6} + 60 x^{5} + 36 x^{4} - 24 x^{3} - 36 x^{2} + 36$ $2$ $6$ $2$ $20$ $A_4^2:D_4$ (as 12T208) $[8/3]$ $[2, 2, 8/3, 8/3, 8/3, 8/3]_{3}^{6}$ $t^{2} + t + 1$ $x^{6} + \left(2 t + 2\right) x^{5} + \left(2 t + 4\right) x^{4} + 4 x^{3} + 6 x^{2} + 6 t$
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