n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 22 |
4 | 38 |
5 | 314 |
6 | 1504 |
7 | 16346 |
8 | 24796 |
9 | 331906 |
10 | 2426404 |
11 | 38445118 |
12 | 163944598 |
13 | 2993870654 |
14 | 2647864592 |
15 | 601353085846 |
16 | 820420721222 |
17 | 18874008233858 |
18 | 20741357283932 |
19 | 5782164084903302 |
20 | 38314394323494974 |
21 | 1059898973520975218 |
[2,4,22,38,314,1504,16346,24796,331906,2426404, 38445118,163944598,2993870654,2647864592, 601353085846,820420721222,18874008233858, 20741357283932,5782164084903302,38314394323494974, 1059898973520975218] |