n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 31 |
4 | 217 |
5 | 1661 |
6 | 13721 |
7 | 121703 |
8 | 1157857 |
9 | 11826121 |
10 | 129877645 |
11 | 1535504015 |
12 | 19546846441 |
13 | 267633414517 |
14 | 3932330905361 |
15 | 61806788736551 |
16 | 1035452546213441 |
17 | 18421374554192017 |
18 | 346790652640704725 |
19 | 6885640002624595007 |
20 | 143771244649798115257 |
[1,1,5,31,217,1661,13721,121703,1157857,11826121, 129877645,1535504015,19546846441,267633414517, 3932330905361,61806788736551,1035452546213441, 18421374554192017,346790652640704725, 6885640002624595007,143771244649798115257] |