# A026334 (b-file synthesized from sequence entry)
0 1
1 4
2 36
3 352
4 3620
5 38304
6 412895
7 4509152
8 49721364
9 552359680
10 6172578126
11 69310337760
12 781375805392
13 8838533555180
14 100264250360835
15 1140219161743552
16 12994808897190788
17 148381034370726096