n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 11 |
6 | 20 |
7 | 36 |
8 | 64 |
9 | 117 |
10 | 209 |
11 | 381 |
12 | 699 |
13 | 1291 |
14 | 2387 |
15 | 4445 |
16 | 8317 |
17 | 15645 |
18 | 29494 |
19 | 55855 |
20 | 106021 |
21 | 201778 |
22 | 384941 |
23 | 735909 |
24 | 1409683 |
25 | 2705277 |
26 | 5200202 |
[0,1,3,6,11,20,36,64,117,209,381,699,1291,2387, 4445,8317,15645,29494,55855,106021,201778,384941, 735909,1409683,2705277,5200202] |