# A012503 (b-file synthesized from sequence entry) 0 1 1 -6 2 108 3 -5880 4 624848 5 -110121440 6 29157594048 7 -10831610048896 8 5375188617697536 9 -3434391975840699904 10 2745651126153216330752 11 -2684651090523817558325248 12 3151501790727433916335149056