# A172340 (b-file synthesized from sequence entry) 1 1 2 8 3 193 4 16448 5 5253121 6 6447694208 7 30795721162753 8 576522325894105088 9 42502811563960266915841 10 12379542064132015743721023488 11 14278867426031486089248841370959873