# A012073 (b-file synthesized from sequence entry)
0 1
1 1
2 13
3 469
4 32985
5 3818601
6 658371429
7 158197312701
8 50529852678321
9 20707179214389201
10 10591085815045781949
11 6613325759240221954725
12 4951199941339632477906825
13 4377912560491798717856660025