n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 8 |
6 | 14 |
7 | 16 |
8 | -21 |
9 | -242 |
10 | -1166 |
11 | -4472 |
12 | -15132 |
13 | -46508 |
14 | -130016 |
15 | -323000 |
16 | -660535 |
17 | -786714 |
18 | 1789952 |
19 | 18546464 |
20 | 93845290 |
21 | 380532240 |
22 | 1355983860 |
23 | 4363436280 |
24 | 12688926510 |
25 | 32530717752 |
26 | 67666586472 |
27 | 76255301640 |
28 | -240266135872 |
[0,1,1,2,4,8,14,16,-21,-242,-1166,-4472,-15132, -46508,-130016,-323000,-660535,-786714,1789952, 18546464,93845290,380532240,1355983860,4363436280, 12688926510,32530717752,67666586472,76255301640, -240266135872] |