n | a(n) |
---|---|
2 | 1 |
3 | 432 |
4 | 39960 |
5 | -1418560 |
6 | 17312940 |
7 | -71928864 |
8 | -462815680 |
9 | 7500885120 |
10 | -38038437810 |
11 | 29000909200 |
12 | 729783353376 |
13 | -4661016429888 |
14 | 13691625085880 |
15 | -16503845217120 |
16 | -14982974507520 |
17 | 45085348093056 |
18 | 99234456545637 |
19 | -157805792764560 |
20 | -1644659689877680 |
[1,432,39960,-1418560,17312940,-71928864, -462815680,7500885120,-38038437810,29000909200, 729783353376,-4661016429888,13691625085880, -16503845217120,-14982974507520,45085348093056, 99234456545637,-157805792764560,-1644659689877680] |