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