n | a(n) |
---|---|
1 | 3 |
2 | 15 |
3 | 17 |
4 | 45 |
5 | 73 |
6 | 83 |
7 | 165 |
8 | 177 |
9 | 181 |
10 | 229 |
11 | 377 |
12 | 383 |
13 | 787 |
14 | 2585 |
15 | 3127 |
16 | 3635 |
17 | 4777 |
18 | 36417 |
19 | 63337 |
20 | 166705 |
21 | 418411 |
[3,15,17,45,73,83,165,177,181,229,377,383,787, 2585,3127,3635,4777,36417,63337,166705,418411] |