# A047003 (b-file synthesized from sequence entry)
1 1
2 2
3 2
4 7
5 30
6 113
7 442
8 1692
9 6542
10 25213
11 97548
12 377617
13 1465010
14 5690787
15 22140830
16 86250091
17 336416094
18 1313641661
19 5134950280
20 20091508863
21 78682553016
22 308392187964
23 1209658474836
24 4748241492783
25 18650595931506