# A163921 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 41
5 385
6 5769
7 139541
8 5551356
9 369312953
10 41588540350
11 7987225089655
12 2629160183190431
13 1487755631073862696
14 1450453417949809255147
15 2439516473122553169216351
16 7086426394313598512496200542