# A204218 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 22
5 74
6 271
7 1012
8 3858
9 15046
10 59579
11 238825
12 967873
13 3958517
14 16316594
15 67716000
16 282719162
17 1186633647
18 5004102122
19 21192022233
20 90089538788
21 384305738731
22 1644544501988
23 7057705570877
24 30368821119351
25 130993073168419
26 566297366630412
27 2453269044761359