# A149624 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 15
4 67
5 215
6 1043
7 3861
8 18385
9 69261
10 338609
11 1353969
12 6559381
13 26398681
14 129688109
15 539731863
16 2636124491
17 11003741583
18 54223215931
19 231338016843
20 1135230145991
21 4850631360147
22 23952841458207
23 103949123901271
24 511679547285827
25 2222260035489935
26 10990667620450459
27 48295910120993503