# A091561 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 9
5 22
6 56
7 146
8 388
9 1048
10 2869
11 7942
12 22192
13 62510
14 177308
15 506008
16 1451866
17 4185788
18 12119696
19 35227748
20 102753800
21 300672368
22 882373261
23 2596389190
24 7658677856
25 22642421206
26 67081765932
27 199128719896
28 592179010350