n | a(n) |
---|---|
1 | 1 |
2 | -1 |
3 | -3 |
4 | 15 |
5 | 165 |
6 | -3465 |
7 | -148995 |
8 | 12664575 |
9 | 2165642325 |
10 | -738484032825 |
11 | -504384594419475 |
12 | 688484971382583375 |
13 | 1880252456845835197125 |
14 | -10268058666835106011499625 |
15 | -112158004817839862963610403875 |
[1,-1,-3,15,165,-3465,-148995,12664575,2165642325, -738484032825,-504384594419475,688484971382583375, 1880252456845835197125, -10268058666835106011499625, -112158004817839862963610403875] |