n | a(n) |
---|---|
1 | 15 |
2 | 55 |
3 | 550 |
4 | 4152 |
5 | 26006 |
6 | 164075 |
7 | 1093496 |
8 | 7362866 |
9 | 47724022 |
10 | 292277921 |
11 | 1695340197 |
12 | 9384561666 |
13 | 49848123324 |
14 | 254860709784 |
15 | 1257031665966 |
16 | 5994561288262 |
17 | 27703365847356 |
18 | 124331694874481 |
19 | 542842646444008 |
[15,55,550,4152,26006,164075,1093496,7362866, 47724022,292277921,1695340197,9384561666, 49848123324,254860709784,1257031665966, 5994561288262,27703365847356,124331694874481, 542842646444008] |