# A138213 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 21
4 244
5 4002
6 84909
7 2209947
8 68121822
9 2425846806
10 97969327890
11 4423628854404
12 220806455598561
13 12072207455321168
14 717431790926502954
15 46045783798588216767
16 3174068594948910976851
17 233875508656473241657578