# A192866 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 15 5 52 6 203 7 877 8 4140 9 21147 10 115975 11 678569 12 4213555 13 27643388 14 190878823 15 1382610179 16 10474709625 17 82784673008 18 680933897225 19 5816811952612 20 51505026270176