# A161988 (b-file synthesized from sequence entry)
0 1
1 33
2 560
3 6512
4 58343
5 429319
6 2701215
7 14938495
8 74085099
9 334526731
10 1391777608
11 5386279880
12 19542335516
13 66903867676
14 217315477325
15 672858527085
16 1993883448271
17 5674663272047
18 15558879389713
19 41208936343729