# A012460 (b-file synthesized from sequence entry) 0 1 1 0 2 -12 3 480 4 -27888 5 2353920 6 -274245312 7 41974872576 8 -8068087373568 9 1860842339721216 10 -486190504963034112 11 129225947748233994240 12 -22917287813817561968640 13 -13673939410058068058112000