# A014505 (b-file synthesized from sequence entry)
0 1
1 1
2 6
3 68
4 1206
5 29982
6 981476
7 40515568
8 2044492988
9 123175320988
10 8697475219688
11 709097832452880
12 65934837808883016
13 6920436929999656936
14 812724019581549433520
15 105986960037601701495680