n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 4 |
4 | -18 |
5 | 106 |
6 | -750 |
7 | 6196 |
8 | -58408 |
9 | 617716 |
10 | -7234020 |
11 | 92842696 |
12 | -1294948776 |
13 | 19493497024 |
14 | -314874396928 |
15 | 5430592728016 |
16 | -99578626460160 |
17 | 1934092698170896 |
18 | -39660351268817808 |
19 | 856128235903319296 |
[0,1,-1,4,-18,106,-750,6196,-58408,617716, -7234020,92842696,-1294948776,19493497024, -314874396928,5430592728016,-99578626460160, 1934092698170896,-39660351268817808, 856128235903319296] |