n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 1 |
8 | 1 |
9 | 2 |
10 | 2 |
11 | 2 |
12 | 3 |
13 | 3 |
14 | 4 |
15 | 5 |
16 | 6 |
17 | 9 |
18 | 13 |
19 | 16 |
20 | 28 |
21 | 40 |
22 | 68 |
23 | 117 |
24 | 273 |
25 | 665 |
26 | 2566 |
27 | 17059 |
28 | 374062 |
[0,1,1,1,1,1,1,1,1,2,2,2,3,3,4,5,6,9,13,16,28,40, 68,117,273,665,2566,17059,374062] |