# A306037 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 7 4 31 5 178 6 1200 7 9588 8 86592 9 887086 10 10035164 11 125472246 12 1705102394 13 25175822644 14 399387494956 15 6801042408728 16 123348694663480 17 2379855020533664 18 48569042602254128 19 1047134236970183664 20 23748242269316806752 21 565834452464428045872 22 14117321495269290091440