n | a(n) |
---|---|
0 | 2 |
1 | 24 |
2 | 72 |
3 | 2880 |
4 | 800 |
5 | 362880 |
6 | 169344 |
7 | 29030400 |
8 | 9331200 |
9 | 4790016000 |
10 | 8673280 |
11 | 31384184832000 |
12 | 6181733376000 |
13 | 439378587648000 |
14 | 10346434560000 |
15 | 512189896458240000 |
16 | 265423814656 |
17 | 14148260909088768000 |
18 | 2076423318208512000 |
19 | 96342919523794944000000 |
20 | 74538995631567667200000 |
[2,24,72,2880,800,362880,169344,29030400,9331200, 4790016000,8673280,31384184832000,6181733376000, 439378587648000,10346434560000,512189896458240000, 265423814656,14148260909088768000, 2076423318208512000,96342919523794944000000, 74538995631567667200000] |