n | a(n) |
---|---|
3 | 15 |
4 | 315 |
5 | 4900 |
6 | 70532 |
7 | 1008980 |
8 | 14777620 |
9 | 224655816 |
10 | 3568061640 |
11 | 59371808496 |
12 | 1035987707664 |
13 | 18953413075584 |
14 | 363290743698048 |
15 | 7287692926408704 |
16 | 152811506045431296 |
17 | 3344880701417587200 |
18 | 76327884878442508800 |
[15,315,4900,70532,1008980,14777620,224655816, 3568061640,59371808496,1035987707664, 18953413075584,363290743698048,7287692926408704, 152811506045431296,3344880701417587200, 76327884878442508800] |