# A012850 (b-file synthesized from sequence entry)
0 1
1 1
2 21
3 765
4 46473
5 4371225
6 594635613
7 110691178325
8 27018807872657
9 8370279766396593
10 3208469378545620005
11 1491108362472114151469
12 826269720877603294674201
13 538334287550086657620232905