# A073587 (b-file synthesized from sequence entry)
0 1
1 3
2 13
3 105
4 1681
5 53793
6 3442753
7 440672385
8 112812130561
9 57759810847233
10 59146046307566593
11 121131102837896382465
12 496152997224023582576641
13 4064485353259201188467843073
14 66592528027798752271857140908033
15 2182103958414909514444214793274425345