n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 8 |
4 | 36 |
5 | 144 |
6 | 1010 |
7 | 5760 |
8 | 50400 |
9 | 416640 |
10 | 4250232 |
11 | 43545600 |
12 | 553106400 |
13 | 6706022400 |
14 | 95865541200 |
15 | 1410695430144 |
16 | 22720842144000 |
17 | 376610217984000 |
18 | 6888030445296000 |
19 | 128047474114560000 |
20 | 2587520533615041024 |
[1,3,8,36,144,1010,5760,50400,416640,4250232, 43545600,553106400,6706022400,95865541200, 1410695430144,22720842144000,376610217984000, 6888030445296000,128047474114560000, 2587520533615041024] |