# A227474 (b-file synthesized from sequence entry)
0 1
1 1
2 9
3 27
4 189
5 729
6 24057
7 104247
8 938223
9 4349943
10 82648917
11 400529367
12 3948075189
13 19740375945
14 1598970451545
15 8182966428495
16 84557319761115