n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 0 |
3 | 1 |
4 | 1 |
5 | -2 |
6 | -9 |
7 | -9 |
8 | 50 |
9 | 267 |
10 | 413 |
11 | -2180 |
12 | -17731 |
13 | -50533 |
14 | 110176 |
15 | 1966797 |
16 | 9938669 |
17 | 8638718 |
18 | -278475061 |
19 | -2540956509 |
20 | -9816860358 |
21 | 27172288399 |
22 | 725503033401 |
23 | 5592543175252 |
24 | 15823587507881 |
25 | -168392610536153 |
26 | -2848115497132448 |
27 | -20819319685262839 |
[1,-1,0,1,1,-2,-9,-9,50,267,413,-2180,-17731, -50533,110176,1966797,9938669,8638718,-278475061, -2540956509,-9816860358,27172288399,725503033401, 5592543175252,15823587507881,-168392610536153, -2848115497132448,-20819319685262839] |