n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | -5 |
4 | 15 |
5 | 87 |
6 | -609 |
7 | -8337 |
8 | 125055 |
9 | 2695455 |
10 | -83559105 |
11 | -4212669825 |
12 | 265398198975 |
13 | 22347926076735 |
14 | -2838186611745345 |
15 | -560679228377509185 |
16 | 142973203236264842175 |
17 | 47858338570309251530175 |
18 | -24455611009428027531919425 |
19 | -19225279650279123532147010625 |
[1,1,-1,-5,15,87,-609,-8337,125055,2695455, -83559105,-4212669825,265398198975,22347926076735, -2838186611745345,-560679228377509185, 142973203236264842175,47858338570309251530175, -24455611009428027531919425, -19225279650279123532147010625] |