# A012168 (b-file synthesized from sequence entry)
0 1
1 1
2 9
3 201
4 7921
5 524081
6 48396345
7 6493605561
8 1082018699105
9 246352273609441
10 64161902428428265
11 22422522791742857001
12 8300517886009938036049
13 4196071192877342442444561