# A037545 (b-file synthesized from sequence entry)
1 1
2 6
3 26
4 105
5 422
6 1690
7 6761
8 27046
9 108186
10 432745
11 1730982
12 6923930
13 27695721
14 110782886
15 443131546
16 1772526185
17 7090104742
18 28360418970
19 113441675881
20 453766703526
21 1815066814106
22 7260267256425
23 29041069025702