# A006689 (b-file synthesized from sequence entry)
1 1
2 12
3 216
4 5248
5 160675
6 5931540
7 256182290
8 12665445248
9 705068085303
10 43631250229700
11 2970581345516818
12 220642839342906336
13 17753181687544516980
14 1538156947936524172656
15 142767837727544113783650