n | a(n) |
---|---|
1 | 3 |
2 | 51 |
3 | 381 |
4 | 3015 |
5 | 24651 |
6 | 198945 |
7 | 1607067 |
8 | 12991131 |
9 | 104990445 |
10 | 848511855 |
11 | 6857610579 |
12 | 55422433089 |
13 | 447917887827 |
14 | 3620023336611 |
15 | 29256629564061 |
16 | 236448855048951 |
17 | 1910953595190267 |
18 | 15444116384727393 |
19 | 124817646797556651 |
[3,51,381,3015,24651,198945,1607067,12991131, 104990445,848511855,6857610579,55422433089, 447917887827,3620023336611,29256629564061, 236448855048951,1910953595190267, 15444116384727393,124817646797556651] |