# A128232 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 2
5 6
6 16
7 36
8 141
9 757
10 3361
11 11881
12 69796
13 541256
14 3364362
15 16217566
16 127028721
17 1288189281
18 10294947721
19 62859285817
20 615454153246
21 7709812846786
22 75307542579116
23 556618975909536
24 6539815832391997