n | a(n) |
---|---|
0 | 1 |
1 | -3 |
2 | 8 |
3 | -24 |
4 | 70 |
5 | -204 |
6 | 596 |
7 | -1740 |
8 | 5080 |
9 | -14832 |
10 | 43304 |
11 | -126432 |
12 | 369136 |
13 | -1077744 |
14 | 3146624 |
15 | -9187008 |
16 | 26822752 |
17 | -78312768 |
18 | 228645056 |
19 | -667561152 |
20 | 1949037952 |
21 | -5690488320 |
22 | 16614174848 |
23 | -48507402240 |
24 | 141624130816 |
25 | -413491415808 |
26 | 1207245897728 |
27 | -3524722888704 |
28 | 10290920404480 |
[1,-3,8,-24,70,-204,596,-1740,5080,-14832,43304, -126432,369136,-1077744,3146624,-9187008,26822752, -78312768,228645056,-667561152,1949037952, -5690488320,16614174848,-48507402240,141624130816, -413491415808,1207245897728,-3524722888704, 10290920404480] |