# A272687 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 14
4 50
5 184
6 694
7 2670
8 10440
9 41374
10 165830
11 671084
12 2738334
13 11254362
14 46547340
15 193592830
16 809165002
17 3397135168
18 14319385126
19 60576862358
20 257109077584
21 1094541239294
22 4672423779086
23 19996407893908
24 85778157486910
25 368757697819570
26 1588465839532628
27 6855304750273902