n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | 6 |
4 | -48 |
5 | 534 |
6 | -7542 |
7 | 129240 |
8 | -2603736 |
9 | 60292512 |
10 | -1577546928 |
11 | 46021512096 |
12 | -1480976147664 |
13 | 52110720451152 |
14 | -1990258155061776 |
15 | 81995762243700864 |
16 | -3624527727510038784 |
17 | 171109526616468957312 |
18 | -8591991935936929932672 |
19 | 457246520477143117555968 |
[1,1,-1,6,-48,534,-7542,129240,-2603736,60292512, -1577546928,46021512096,-1480976147664, 52110720451152,-1990258155061776, 81995762243700864,-3624527727510038784, 171109526616468957312,-8591991935936929932672, 457246520477143117555968] |