# A037612 (b-file synthesized from sequence entry)
1 1
2 8
3 42
4 211
5 1058
6 5292
7 26461
8 132308
9 661542
10 3307711
11 16538558
12 82692792
13 413463961
14 2067319808
15 10336599042
16 51682995211
17 258414976058
18 1292074880292
19 6460374401461
20 32301872007308
21 161509360036542
22 807546800182711