# A206638 (b-file synthesized from sequence entry)
0 1
1 3
2 21
3 147
4 1074
5 8076
6 62454
7 494292
8 3990378
9 32756142
10 272715870
11 2297982828
12 19563641319
13 168036314862
14 1454458825605
15 12674387617266
16 111104771086812
17 979101922849230
18 8668964794053837
19 77080072176742422
20 687976906966730076
21 6161811541538326680