n | a(n) |
---|---|
1 | 2 |
2 | 7 |
3 | 23 |
4 | 79 |
5 | 287 |
6 | 1087 |
7 | 4223 |
8 | 16639 |
9 | 66047 |
10 | 263167 |
11 | 1050623 |
12 | 4198399 |
13 | 16785407 |
14 | 67125247 |
15 | 268468223 |
16 | 1073807359 |
17 | 4295098367 |
18 | 17180131327 |
19 | 68720001023 |
20 | 274878955519 |
21 | 1099513724927 |
22 | 4398050705407 |
23 | 17592194433023 |
24 | 70368760954879 |
[2,7,23,79,287,1087,4223,16639,66047,263167, 1050623,4198399,16785407,67125247,268468223, 1073807359,4295098367,17180131327,68720001023, 274878955519,1099513724927,4398050705407, 17592194433023,70368760954879] |