# A037662 (b-file synthesized from sequence entry)
1 3
2 19
3 114
4 687
5 4123
6 24738
7 148431
8 890587
9 5343522
10 32061135
11 192366811
12 1154200866
13 6925205199
14 41551231195
15 249307387170
16 1495844323023
17 8975065938139
18 53850395628834
19 323102373773007
20 1938614242638043