# A291953 (b-file synthesized from sequence entry) 1 1 2 0 3 0 4 6 5 570 6 73620 7 13675620 8 3540401760 9 1229855690952 10 554518177819200 11 315663337023994080 12 221736991132524890880 13 188570961922698640977120 14 191056359142016559185938944 15 227491517759156008014967128000