n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -2 |
3 | 7 |
4 | -28 |
5 | 193 |
6 | -1400 |
7 | 13319 |
8 | -139424 |
9 | 1721281 |
10 | -23379712 |
11 | 357281351 |
12 | -5951323904 |
13 | 108706678273 |
14 | -2142923081728 |
15 | 45591739883975 |
16 | -1037606714249216 |
17 | 25211971076762753 |
18 | -650452080060399616 |
[0,1,-2,7,-28,193,-1400,13319,-139424,1721281, -23379712,357281351,-5951323904,108706678273, -2142923081728,45591739883975,-1037606714249216, 25211971076762753,-650452080060399616] |