n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | -3 |
4 | -8 |
5 | -21 |
6 | -56 |
7 | -154 |
8 | -434 |
9 | -1252 |
10 | -3675 |
11 | -10954 |
12 | -33044 |
13 | -100676 |
14 | -309569 |
15 | -957424 |
16 | -2987846 |
17 | -9330274 |
18 | -29522921 |
19 | -92459524 |
20 | -298142956 |
21 | -922424269 |
22 | -3098690837 |
23 | -9042937179 |
24 | -34187149573 |
25 | -79544646085 |
[1,0,-1,-3,-8,-21,-56,-154,-434,-1252,-3675, -10954,-33044,-100676,-309569,-957424,-2987846, -9330274,-29522921,-92459524,-298142956, -922424269,-3098690837,-9042937179,-34187149573, -79544646085] |