n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | 9 |
4 | -45 |
5 | 1575 |
6 | -42525 |
7 | 3274425 |
8 | -42567525 |
9 | 5746615875 |
10 | -488462349375 |
11 | 102088631019375 |
12 | -6431583754220625 |
13 | 1923043542511966875 |
14 | -336532619939594203125 |
15 | 136295711075535652265625 |
16 | -3952575621190533915703125 |
17 | 2083007352367411373575546875 |
[1,1,-1,9,-45,1575,-42525,3274425,-42567525, 5746615875,-488462349375,102088631019375, -6431583754220625,1923043542511966875, -336532619939594203125,136295711075535652265625, -3952575621190533915703125, 2083007352367411373575546875] |