# A020110 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 15 5 70 6 401 7 2715 8 21116 9 185346 10 1812264 11 19532171 12 230045569 13 2939471158 14 40499380397 15 598490843643 16 9442855533027 17 158430131720784 18 2816535675036147 19 52888281009012093 20 1046012668844905827