# A091217 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 6 4 16 5 54 6 232 7 1132 8 6024 9 36262 10 242080 11 1775316 12 14135584 13 122077832 14 1131066448 15 11230979624 16 118638940864