# A124295 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 6
5 22
6 92
7 426
8 2145
9 11589
10 66425
11 399682
12 2500037
13 16115347
14 106266473
15 712602272
16 4837372576
17 33128183406
18 228308233098
19 1580495251012
20 10976092266889
21 76398165848091
22 532614662149795
23 3717370694711130