# A025539 (b-file synthesized from sequence entry)
0 1
1 3
2 11
3 49
4 130
5 806
6 957
7 7723
8 17438
9 58154
10 63886
11 764858
12 826222
13 11530794
14 12314319
15 13092559
16 27732718
17 497636846
18 523706646
19 10443916834
20 10935791938
21 11426233362
22 11915393030
23 285278184586
24 296478322266
25 1538283113698