# A026981 (b-file synthesized from sequence entry)
0 1
1 2
2 11
3 34
4 173
5 586
6 2917
7 10262
8 50503
9 181334
10 885831
11 3221146
12 15652239
13 57405038
14 277822147
15 1025177314
16 4945846997
17 18333973274
18 88224662549
19 328195843910
20 1576001732485
21 5879010027618
22 28181895551161
23 105362519875518
24 504329070986033
25 1888952213601906