# A153467 (b-file synthesized from sequence entry)
1 1
2 6
3 48
4 528
5 8160
6 179520
7 5666304
8 257819136
9 16962407424
10 1617060046848
11 223709857824768
12 44962767953608704
13 13140310268741124096
14 5587767779596757434368
15 3459297434976642415460352