# A103904 (b-file synthesized from sequence entry)
1 0
2 2
3 24
4 384
5 10240
6 491520
7 44040192
8 7516192768
9 2473901162496
10 1583296743997440
11 1981583836043018240
12 4869940435459321626624
13 23574053482485268906770432
14 225305087149939210031640608768