n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 1 |
8 | 1 |
9 | 9 |
10 | 25 |
11 | 37 |
12 | 81 |
13 | 207 |
14 | 659 |
15 | 1525 |
16 | 5011 |
17 | 16955 |
18 | 78955 |
19 | 307577 |
20 | 1539617 |
21 | 6559267 |
22 | 39653567 |
23 | 197073411 |
24 | 1351045655 |
[1,1,1,1,1,1,1,1,9,25,37,81,207,659,1525,5011, 16955,78955,307577,1539617,6559267,39653567, 197073411,1351045655] |