# A149179 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 10
4 36
5 118
6 452
7 1616
8 6452
9 24568
10 100709
11 398422
12 1666159
13 6782906
14 28786448
15 119623684
16 513732828
17 2169837355
18 9406969512
19 40239469006
20 175836286213
21 760059422197
22 3343274745400
23 14575762567303
24 64479991320354
25 283163153095060
26 1258803828287115
27 5562133587889050