# A364475 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 18 4 94 5 529 6 3135 7 19270 8 121732 9 785496 10 5155167 11 34304706 12 230923653 13 1569684910 14 10759159000 15 74281473504 16 516089542684 17 3605685460750 18 25316226436086 19 178538289189108 20 1264131169628799 21 8982889404251721 22 64041351551534215