# A112740 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 7
4 13
5 26
6 58
7 147
8 423
9 1366
10 4880
11 19039
12 80281
13 362914
14 1747598
15 8918299
16 48024291
17 271891710
18 1613325844
19 10005690695
20 64702147429
21 435311589418
22 3041246276098
23 22024930755299
24 165082467634303
25 1278742554953574