# A012195 (b-file synthesized from sequence entry)
0 1
1 0
2 12
3 80
4 13776
5 566272
6 127692224
7 15090459904
8 4735792068864
9 1137376547676160
10 493601667145247744
11 198575926723414577152
12 116701919243205334355968
13 69932277446693762007433216