# A126475 (b-file synthesized from sequence entry)
0 1
1 7
2 37
3 203
4 1111
5 6083
6 33305
7 182349
8 998383
9 5466269
10 29928491
11 163862147
12 897165287
13 4912089625
14 26894291201
15 147249532159
16 806209189861
17 4414093873755
18 24167703582839
19 132321131623579
20 724474371929041