# A351811 (b-file synthesized from sequence entry)
0 1
1 1
2 11
3 101
4 971
5 10621
6 133251
7 1872261
8 28840251
9 481539021
10 8658919571
11 166768522101
12 3421884596011
13 74443313899901
14 1710104876681571
15 41338914172638021
16 1048412294411955451
17 27821558652073329261
18 770663280948805164051
19 22235353608667471453621