# A065340 (b-file synthesized from sequence entry)
4 2
5 28
6 182
7 864
8 3474
9 12660
10 43358
11 142552
12 455930
13 1430796
14 4431078
15 13595664
16 41441570
17 125732836
18 380212142
19 1147057800
20 3454803594
21 10393245180
22 31240551350
23 93849578560
24 281817169202
25 846013542228
26 2539215029502
27 7620094559544
28 22865383949594