# A120975 (b-file synthesized from sequence entry)
0 1
1 1
2 8
3 108
4 1888
5 38798
6 894308
7 22517256
8 609112756
9 17507219813
10 530495478900
11 16850219461706
12 558608940038072
13 19263089278722726
14 689119527976265884
15 25519081467271687938
16 976447764170903902364