# A193436 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 71 4 2276 5 144724 6 16688884 7 3249507820 8 1005334796864 9 468967172341824 10 315409074574480704 11 294510517409159769024 12 369877735410388416241920 13 608401340784471133062837504 14 1281569707473914769353921666304 15 3391681347749396029674738480747264