n | a(n) |
---|---|
1 | 0 |
2 | 5 |
3 | 7 |
4 | 70 |
5 | 410 |
6 | 2986 |
7 | 20205 |
8 | 141313 |
9 | 986376 |
10 | 6925085 |
11 | 48597819 |
12 | 341209889 |
13 | 2395331138 |
14 | 16816717757 |
15 | 118065063145 |
16 | 828920971395 |
17 | 5819799452720 |
18 | 40860590480721 |
19 | 286880736650848 |
20 | 2014179680712444 |
21 | 14141486042579555 |
[0,5,7,70,410,2986,20205,141313,986376,6925085, 48597819,341209889,2395331138,16816717757, 118065063145,828920971395,5819799452720, 40860590480721,286880736650848,2014179680712444, 14141486042579555] |