n | a(n) |
---|---|
1 | 20 |
2 | 231 |
3 | 2902 |
4 | 33533 |
5 | 309990 |
6 | 2327062 |
7 | 14697256 |
8 | 541365583 |
9 | 9617848524 |
10 | 90094114144 |
11 | 499454404412 |
12 | 1875291094664 |
13 | 5288570216780 |
14 | 12109231279152 |
15 | 23836473347284 |
16 | 42007667355832 |
17 | 68169527721372 |
18 | 103870860371584 |
[20,231,2902,33533,309990,2327062,14697256, 541365583,9617848524,90094114144,499454404412, 1875291094664,5288570216780,12109231279152, 23836473347284,42007667355832,68169527721372, 103870860371584] |