n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 9 |
3 | 49 |
4 | 281 |
5 | 1601 |
6 | 9129 |
7 | 52049 |
8 | 296761 |
9 | 1692001 |
10 | 9647049 |
11 | 55003249 |
12 | 313604441 |
13 | 1788035201 |
14 | 10194593769 |
15 | 58125109649 |
16 | 331403923321 |
17 | 1889520055201 |
18 | 10773215969289 |
19 | 61424160067249 |
20 | 350213664213401 |
21 | 1996764961336001 |
[1,1,9,49,281,1601,9129,52049,296761,1692001, 9647049,55003249,313604441,1788035201,10194593769, 58125109649,331403923321,1889520055201, 10773215969289,61424160067249,350213664213401, 1996764961336001] |