# A020094 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 1
5 3
6 13
7 74
8 519
9 4193
10 38084
11 384011
12 4256113
13 51428024
14 672849974
15 9475970455
16 142929221024
17 2298778304797
18 39270796040273
19 710146895061598
20 13551969914092153
21 272168729108017393
22 5738224038694033365