# A012152 (b-file synthesized from sequence entry) 0 1 1 6 2 176 3 12240 4 1561088 5 318007808 6 94807748608 7 38942692972544 8 21088169713729536 9 14558790290337431552 10 12481351528273319821312 11 13009249833253480856289280 12 16200881782506627598590672896