# A091702 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 23 4 78 5 264 6 895 7 3034 8 10286 9 34872 10 118225 11 400813 12 1358859 13 4606881 14 15618510 15 52950761 16 179516682 17 608607667 18 2063336333 19 6995240208 20 23715661274 21 80402183905 22 272584057514 23 924129977596 24 3133038018732 25 10621803712455 26 36010643162123