# A117416 (b-file synthesized from sequence entry)
0 4
1 4
2 9
3 26
4 82
5 247
6 731
7 2186
8 6559
9 19679
10 59047
11 177149
12 531439
13 1594322
14 4782979
15 14348905
16 43046722
17 129140159
18 387420493
19 1162261465
20 3486784399
21 10460353201
22 31381059597
23 94143178823
24 282429536489
25 847288609441