n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 5 |
6 | 6 |
7 | 11 |
8 | 18 |
9 | 20 |
10 | 28 |
11 | 70 |
12 | 106 |
13 | 208 |
14 | 726 |
15 | 910 |
16 | 2906 |
17 | 7431 |
18 | 14073 |
19 | 22394 |
20 | 41422 |
21 | 82587 |
22 | 85461 |
23 | 356981 |
[0,1,2,4,5,6,11,18,20,28,70,106,208,726,910,2906, 7431,14073,22394,41422,82587,85461,356981] |