n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 7 |
4 | 29 |
5 | 131 |
6 | 625 |
7 | 3099 |
8 | 15818 |
9 | 82595 |
10 | 439259 |
11 | 2371632 |
12 | 12967707 |
13 | 71669167 |
14 | 399751019 |
15 | 2247488837 |
16 | 12723799989 |
17 | 72474333715 |
18 | 415046380767 |
19 | 2388355096446 |
20 | 13803034008095 |
21 | 80082677184820 |
22 | 466263828731640 |
23 | 2723428895205210 |
24 | 15954063529603565 |
25 | 93711351580424391 |
[1,2,7,29,131,625,3099,15818,82595,439259,2371632, 12967707,71669167,399751019,2247488837, 12723799989,72474333715,415046380767, 2388355096446,13803034008095,80082677184820, 466263828731640,2723428895205210, 15954063529603565,93711351580424391] |