# A010039 (b-file synthesized from sequence entry)
0 1
1 4
2 24
3 208
4 2208
5 28864
6 440064
7 7752448
8 153604608
9 3398247424
10 82812002304
11 2208100261888
12 63835179614208
13 1991789102301184
14 66630050985836544