n | a(n) |
---|---|
3 | 1080 |
4 | 8780 |
5 | 39776 |
6 | 128052 |
7 | 559412 |
8 | 1890188 |
9 | 5416524 |
10 | 21100532 |
11 | 68876708 |
12 | 201975948 |
13 | 775896500 |
14 | 2612235476 |
15 | 8139800700 |
[1080,8780,39776,128052,559412,1890188,5416524, 21100532,68876708,201975948,775896500,2612235476, 8139800700] |