# A009539 (b-file synthesized from sequence entry)
0 1
1 2
2 36
3 944
4 41104
5 2650592
6 237023424
7 28021573376
8 4225816615168
9 790713657219584
10 179579770991391744
11 48624187236528582656
12 15465493506159120388096
13 5706480969286870250971136