# A012351 (b-file synthesized from sequence entry) 0 1 1 0 2 -12 3 -240 4 -1008 5 378240 6 32163648 7 -363487488 8 -690754821888 9 -145507353366528 10 -11585562008128512 11 3150884675987558400 12 573373842109571665920 13 -1149448245885758287872000