# A126522 (b-file synthesized from sequence entry)
0 1
1 27
2 223
3 1887
4 16103
5 138099
6 1188039
7 10242351
8 88435341
9 764407997
10 6612526647
11 57234605067
12 495599614141
13 4292742043159
14 37190688714579
15 322257543592553
16 2792687844075253
17 24203507849388273
18 209778422093025849