n | a(n) |
---|---|
1 | 1 |
2 | 20 |
3 | 600 |
4 | 24000 |
5 | 1200000 |
6 | 72000000 |
7 | 5040000000 |
8 | 403200000000 |
9 | 36288000000000 |
10 | 3628800000000000 |
11 | 399168000000000000 |
12 | 47900160000000000000 |
13 | 6227020800000000000000 |
14 | 871782912000000000000000 |
15 | 130767436800000000000000000 |
16 | 20922789888000000000000000000 |
[1,20,600,24000,1200000,72000000,5040000000, 403200000000,36288000000000,3628800000000000, 399168000000000000,47900160000000000000, 6227020800000000000000,871782912000000000000000, 130767436800000000000000000, 20922789888000000000000000000] |