# A153958 (b-file synthesized from sequence entry)
0 1
1 2
2 2
3 4
4 6
5 8
6 14
7 52
8 78
9 248
10 909
11 2324
12 7268
13 47501
14 121021
15 658137
16 4239215
17 19354790
18 106079779
19 1177208160
20 5469153552
21 52045617401
22 594802267838
23 4804258306801
24 46214470259731
25 931757866564437
26 7539129948721736