# A032026 (b-file synthesized from sequence entry) 1 1 2 3 3 11 4 23 5 71 6 187 7 459 8 1277 9 3151 10 8143 11 20677 12 51801 13 129419 14 320545 15 795345 16 1932009 17 4743273 18 11486873 19 27621529 20 66498519 21 158800697 22 377809541 23 892817603 24 2109091339 25 4951796685 26 11574868127