n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | -4 |
4 | -12 |
5 | -33 |
6 | -88 |
7 | -232 |
8 | -609 |
9 | -1596 |
10 | -4180 |
11 | -10945 |
12 | -28656 |
13 | -75024 |
14 | -196417 |
15 | -514228 |
16 | -1346268 |
17 | -3524577 |
18 | -9227464 |
19 | -24157816 |
20 | -63245985 |
21 | -165580140 |
22 | -433494436 |
23 | -1134903169 |
24 | -2971215072 |
25 | -7778742048 |
26 | -20365011073 |
27 | -53316291172 |
28 | -139583862444 |
[1,0,-1,-4,-12,-33,-88,-232,-609,-1596,-4180, -10945,-28656,-75024,-196417,-514228,-1346268, -3524577,-9227464,-24157816,-63245985,-165580140, -433494436,-1134903169,-2971215072,-7778742048, -20365011073,-53316291172,-139583862444] |