# A151092 (b-file synthesized from sequence entry) 0 1 1 3 2 11 3 43 4 175 5 756 6 3305 7 14745 8 66861 9 305534 10 1412043 11 6564204 12 30697806 13 144406873 14 681755516 15 3232121308 16 15373877114 17 73328686004 18 350744115090 19 1681368517796 20 8077097896451 21 38877607114420 22 187439768335649 23 905161861391191 24 4377421380522272 25 21197116816099867 26 102772998419877823