# A073082 (b-file synthesized from sequence entry)
1 1
2 2
3 9
4 10
5 39
6 348
7 1272
8 10682
9 18275
10 414912
11 5606336
12 8712340
13 20920564
14 47201552
15 140142814
16 240574848
17 5459371212
18 16993264107
19 22955387784
20 23807694876
21 33482496720