# A067308 (b-file synthesized from sequence entry)
0 16
1 185
2 2181
3 26860
4 342968
5 4504944
6 60509296
7 827456576
8 11482655232
9 161302619392
10 2289365653760
11 32780329073664
12 472951175022592
13 6869148315201536
14 100352220112662528
15 1473672361011920896