# A007852 (b-file synthesized from sequence entry)
1 1
2 2
3 7
4 29
5 131
6 625
7 3099
8 15818
9 82595
10 439259
11 2371632
12 12967707
13 71669167
14 399751019
15 2247488837
16 12723799989
17 72474333715
18 415046380767
19 2388355096446
20 13803034008095
21 80082677184820
22 466263828731640
23 2723428895205210
24 15954063529603565
25 93711351580424391