# A145084 (b-file synthesized from sequence entry)
0 1
1 4
2 36
3 524
4 10756
5 288764
6 9667476
7 390576684
8 18591797156
9 1023871865244
10 64308208060916
11 4553899456432844
12 360155907603064196
13 31561618500966519484
14 3044291843751868832596
15 321353247687162678690924