# A012724 (b-file synthesized from sequence entry)
0 2
1 12
2 358
3 19992
4 1791882
5 235396260
6 42624803310
7 10177141489200
8 3098164254001170
9 1171315364214109500
10 538446859100064311670
11 295771765211446451586120
12 191335531681410403898936730