# A019476 (b-file synthesized from sequence entry)
0 2
1 10
2 51
3 261
4 1336
5 6839
6 35009
7 179212
8 917391
9 4696149
10 24039712
11 123059927
12 629947049
13 3224715748
14 16507405935
15 84501851325
16 432567231064
17 2214323194775
18 11335179502289
19 58025086244092