n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 42 |
4 | 410 |
5 | 5032 |
6 | 75418 |
7 | 1334838 |
8 | 27249052 |
9 | 630249409 |
10 | 16288946267 |
11 | 465239139606 |
12 | 14551915228366 |
13 | 494696673952511 |
14 | 18161513224841275 |
15 | 716102966059713315 |
16 | 30181658957863752409 |
17 | 1354087807629298185929 |
18 | 64430442087414935111821 |
19 | 3240840189607299761533535 |
20 | 171821387249394349577932210 |
[1,6,42,410,5032,75418,1334838,27249052,630249409, 16288946267,465239139606,14551915228366, 494696673952511,18161513224841275, 716102966059713315,30181658957863752409, 1354087807629298185929,64430442087414935111821, 3240840189607299761533535, 171821387249394349577932210] |