# A096656 (b-file synthesized from sequence entry) 0 1 1 2 2 8 3 46 4 408 5 5672 6 124416 7 4349256 8 243439224 9 21905300016 10 3176029293240 11 743169188527224 12 280914798900088368 13 171638202113128667928 14 169578263512987049149416 15 270985893735725975486862288