n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | -1 |
3 | 3 |
4 | 7 |
5 | -25 |
6 | -31 |
7 | 427 |
8 | 127 |
9 | -12465 |
10 | -2555 |
11 | 555731 |
12 | 1414477 |
13 | -35135945 |
14 | -57337 |
15 | 2990414715 |
16 | 118518239 |
17 | -329655706465 |
18 | -5749691557 |
19 | 45692713833379 |
20 | 91546277357 |
21 | -7777794952988025 |
22 | -1792042792463 |
23 | 1595024111042171723 |
24 | 1982765468311237 |
25 | -387863354088927172625 |
[1,-1,-1,3,7,-25,-31,427,127,-12465,-2555,555731, 1414477,-35135945,-57337,2990414715,118518239, -329655706465,-5749691557,45692713833379, 91546277357,-7777794952988025,-1792042792463, 1595024111042171723,1982765468311237, -387863354088927172625] |