n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -14 |
3 | -75 |
4 | -232 |
5 | -505 |
6 | -576 |
7 | 2639 |
8 | 36224 |
9 | 356319 |
10 | 3618800 |
11 | 39902159 |
12 | 478980864 |
13 | 6226992239 |
14 | 87178252784 |
15 | 1307674317375 |
16 | 20922789822464 |
17 | 355687428012479 |
18 | 6402373705623024 |
19 | 121645100408701679 |
20 | 2432902008176480000 |
[1,0,-14,-75,-232,-505,-576,2639,36224,356319, 3618800,39902159,478980864,6226992239,87178252784, 1307674317375,20922789822464,355687428012479, 6402373705623024,121645100408701679, 2432902008176480000] |