n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | -1 |
3 | -3 |
4 | -13 |
5 | -71 |
6 | -461 |
7 | -3447 |
8 | -29093 |
9 | -273343 |
10 | -2829325 |
11 | -31998903 |
12 | -392743957 |
13 | -5201061455 |
14 | -73943424413 |
15 | -1123596277863 |
16 | -18176728317413 |
17 | -311951144828863 |
18 | -5661698774848621 |
19 | -108355864447215063 |
[1,-1,-1,-3,-13,-71,-461,-3447,-29093,-273343, -2829325,-31998903,-392743957,-5201061455, -73943424413,-1123596277863,-18176728317413, -311951144828863,-5661698774848621, -108355864447215063] |