n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 16 |
3 | 64 |
4 | 232 |
5 | 544 |
6 | -1664 |
7 | -37376 |
8 | -362024 |
9 | -2743712 |
10 | -17780864 |
11 | -98955776 |
12 | -442825664 |
13 | -1129423616 |
14 | 5536033792 |
15 | 118591811584 |
16 | 1224814969816 |
17 | 9905491019104 |
18 | 68032143081856 |
19 | 398051159254528 |
20 | 1854461906222272 |
21 | 4784426026102528 |
[1,4,16,64,232,544,-1664,-37376,-362024,-2743712, -17780864,-98955776,-442825664,-1129423616, 5536033792,118591811584,1224814969816, 9905491019104,68032143081856,398051159254528, 1854461906222272,4784426026102528] |