# A204092 (b-file synthesized from sequence entry)
0 1
1 3
2 17
3 91
4 449
5 2123
6 9841
7 45211
8 206881
9 945003
10 4313297
11 19680571
12 89784449
13 409577483
14 1868351281
15 8522666971
16 38876763361
17 177338745003
18 808940722577
19 3690027171451
20 16832256509249
21 76781232397643
22 350241657358321
23 1597645838773531
24 7287745912705441