# A369073 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 3
4 6
5 16
6 46
7 145
8 480
9 1820
10 6809
11 29214
12 133441
13 626090
14 3053048
15 16339753
16 89188931
17 509642042
18 3017799873
19 18798910220
20 120223747234
21 802412450368
22 5475810949896
23 39019578827168
24 285084247621276
25 2151914766238809
26 16598498118133839
27 132851511943710915