n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 1 |
8 | 5 |
9 | 17 |
10 | 31 |
11 | 51 |
12 | 113 |
13 | 291 |
14 | 823 |
15 | 2647 |
16 | 8411 |
17 | 31311 |
18 | 121645 |
19 | 537901 |
20 | 2460285 |
21 | 12092291 |
22 | 63560047 |
23 | 371846157 |
24 | 2296989649 |
[1,1,1,1,1,1,1,5,17,31,51,113,291,823,2647,8411, 31311,121645,537901,2460285,12092291,63560047, 371846157,2296989649] |