# A001627 (b-file synthesized from sequence entry)
1 1
2 0
3 2
4 44
5 1008
6 34432
7 1629280
8 101401344
9 8030787968
10 788377273856
11 93933191303424
12 13350759115563520
13 2231133728986759168
14 433075048506207645696
15 96617322164029448916992
16 24549315871469898190266368
17 7047652261245574026565877760