n | a(n) |
---|---|
0 | 1 |
1 | 63 |
2 | 255 |
3 | 863 |
4 | 2655 |
5 | 7683 |
6 | 21287 |
7 | 57071 |
8 | 149087 |
9 | 381311 |
10 | 958207 |
11 | 2372095 |
12 | 5796863 |
13 | 14007295 |
14 | 33511423 |
15 | 79466495 |
16 | 186949631 |
17 | 436666367 |
18 | 1013317631 |
19 | 2337538047 |
20 | 5362941951 |
21 | 12242386943 |
22 | 27817148415 |
23 | 62934482943 |
24 | 141815709695 |
25 | 318372839423 |
26 | 712243150847 |
[1,63,255,863,2655,7683,21287,57071,149087,381311, 958207,2372095,5796863,14007295,33511423,79466495, 186949631,436666367,1013317631,2337538047, 5362941951,12242386943,27817148415,62934482943, 141815709695,318372839423,712243150847] |