# A118927 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 11
4 47
5 219
6 1083
7 5597
8 29933
9 164547
10 925289
11 5303409
12 30898069
13 182587159
14 1092498017
15 6609496707
16 40383429717
17 248940496629
18 1546962207417
19 9683696676693
20 61024927547241
21 386936560902269
22 2467341175475253