# A012086 (b-file synthesized from sequence entry) 0 1 1 -1 2 -7 3 -121 4 -5167 5 -487441 6 -78804727 7 -18558463561 8 -5919443326687 9 -2457116797560481 10 -1289150916753299047 11 -834798631079038210201 12 -654139310316332313889807 13 -610085118687493622960844721