n | a(n) |
---|---|
0 | 7 |
1 | 13 |
2 | 31 |
3 | 91 |
4 | 307 |
5 | 1123 |
6 | 4291 |
7 | 16771 |
8 | 66307 |
9 | 263683 |
10 | 1051651 |
11 | 4200451 |
12 | 16789507 |
13 | 67133443 |
14 | 268484611 |
15 | 1073840131 |
16 | 4295163907 |
17 | 17180262403 |
18 | 68720263171 |
19 | 274879479811 |
20 | 1099514773507 |
21 | 4398052802563 |
22 | 17592198627331 |
23 | 70368769343491 |
24 | 281475027042307 |
25 | 1125900007505923 |
[7,13,31,91,307,1123,4291,16771,66307,263683, 1051651,4200451,16789507,67133443,268484611, 1073840131,4295163907,17180262403,68720263171, 274879479811,1099514773507,4398052802563, 17592198627331,70368769343491,281475027042307, 1125900007505923] |