# A113135 (b-file synthesized from sequence entry) 0 1 1 1 2 8 3 128 4 3136 5 103424 6 4270080 7 211107840 8 12135936000 9 794618298368 10 58355305676800 11 4749550536359936 12 424336070117163008 13 41287521140173963264 14 4346005245162898325504 15 492102089936714946576384