# A067125 (b-file synthesized from sequence entry) 1 1 2 2 3 12 4 56 5 567 6 5674 7 56749 8 567497 9 5674971 10 122263545 11 2634088227 12 56749710539 13 1222635450364 14 26340882275280 15 567497105399112 16 12226354503645281 17 263408822752809483 18 5674971053991125006