n | a(n) |
---|---|
0 | 0 |
1 | -1 |
2 | 0 |
3 | -4 |
4 | 5 |
5 | -20 |
6 | 44 |
7 | -125 |
8 | 316 |
9 | -840 |
10 | 2185 |
11 | -5736 |
12 | 15000 |
13 | -39289 |
14 | 102840 |
15 | -269260 |
16 | 704909 |
17 | -1845500 |
18 | 4831556 |
19 | -12649205 |
20 | 33116020 |
21 | -86698896 |
22 | 226980625 |
23 | -594243024 |
24 | 1555748400 |
25 | -4073002225 |
26 | 10663258224 |
27 | -27916772500 |
28 | 73087059221 |
29 | -191344405220 |
30 | 500946156380 |
31 | -1311494063981 |
32 | 3433536035500 |
33 | -8989114042584 |
34 | 23533806092185 |
35 | -61612304234040 |
[0,-1,0,-4,5,-20,44,-125,316,-840,2185,-5736, 15000,-39289,102840,-269260,704909,-1845500, 4831556,-12649205,33116020,-86698896,226980625, -594243024,1555748400,-4073002225,10663258224, -27916772500,73087059221,-191344405220, 500946156380,-1311494063981,3433536035500, -8989114042584,23533806092185,-61612304234040] |