n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | -1 |
3 | 9 |
4 | -30 |
5 | 127 |
6 | -855 |
7 | 5852 |
8 | -46452 |
9 | 422101 |
10 | -4210605 |
11 | 46275042 |
12 | -555647334 |
13 | 7222813951 |
14 | -101114520507 |
15 | 1516765931792 |
16 | -24268153134120 |
17 | 412557147859433 |
18 | -7426039662804249 |
19 | 141094759708106686 |
[0,2,-1,9,-30,127,-855,5852,-46452,422101, -4210605,46275042,-555647334,7222813951, -101114520507,1516765931792,-24268153134120, 412557147859433,-7426039662804249, 141094759708106686] |