n | a(n) |
---|---|
1 | 5 |
2 | 55 |
3 | 305 |
4 | 2255 |
5 | 15005 |
6 | 104005 |
7 | 709805 |
8 | 4873055 |
9 | 33379505 |
10 | 228841255 |
11 | 1568358005 |
12 | 10750060805 |
13 | 73681030805 |
14 | 505019869255 |
15 | 3461450947505 |
16 | 23725155368255 |
17 | 162614587921805 |
18 | 1114577087604805 |
19 | 7639424691459005 |
20 | 52361396626646255 |
21 | 358890349406803505 |
[5,55,305,2255,15005,104005,709805,4873055, 33379505,228841255,1568358005,10750060805, 73681030805,505019869255,3461450947505, 23725155368255,162614587921805,1114577087604805, 7639424691459005,52361396626646255, 358890349406803505] |