# A150202 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 21 4 80 5 311 6 1270 7 5312 8 22519 9 96946 10 422507 11 1855251 12 8209543 13 36577480 14 163796018 15 736910489 16 3329734404 17 15098891288 18 68685017199 19 313380803066 20 1433548255821 21 6573060361503 22 30204501852140 23 139070528970440 24 641476436597421 25 2963853258368986 26 13715373177290459 27 63559580855588337