# A255280 (b-file synthesized from sequence entry)
0 1
1 7
2 25
3 107
4 413
5 1615
6 6241
7 24227
8 93973
9 364743
10 1415289
11 5491643
12 21307533
13 82673535
14 320773713
15 1244606995
16 4829092037
17 18736941431
18 72699560681
19 282075165611
20 1094454989757
21 4246498377391
22 16476464213569
23 63928877142147