# A357393 (b-file synthesized from sequence entry) 0 0 1 1 2 7 3 110 4 2730 5 93024 6 4037880 7 213127200 8 13253058000 9 948964262400 10 76899763100160 11 6957624460550400 12 695236239163065600 13 76043127767523840000 14 9036546669251861760000 15 1159342449440429270016000 16 159708538424128885551360000 17 23512778013219939149561856000