# A147271 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 3
7 9
8 23
9 45
10 169
11 1061
12 6743
13 40273
14 284761
15 2852385
16 36414365
17 522818739
18 8493813357
19 169218922641