# A007984 (b-file synthesized from sequence entry)
1 1
2 2
3 11
4 185
5 8782
6 1067825
7 312510571
8 212133402500
9 326266056291213
10 1118902054495975181
11 8455790399687227104576
12 139537050182278289405732939
13 4991058955493997577840793161279