n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -2 |
3 | 6 |
4 | 0 |
5 | 120 |
6 | 0 |
7 | 5040 |
8 | 0 |
9 | 362880 |
10 | 0 |
11 | 39916800 |
12 | 0 |
13 | 6227020800 |
14 | 0 |
15 | 1307674368000 |
16 | 0 |
17 | 355687428096000 |
18 | 0 |
19 | 121645100408832000 |
20 | 0 |
21 | 51090942171709440000 |
22 | 0 |
23 | 25852016738884976640000 |
24 | 0 |
25 | 15511210043330985984000000 |
26 | 0 |
27 | 10888869450418352160768000000 |
28 | 0 |
29 | 8841761993739701954543616000000 |
[1,1,-2,6,0,120,0,5040,0,362880,0,39916800,0, 6227020800,0,1307674368000,0,355687428096000,0, 121645100408832000,0,51090942171709440000,0, 25852016738884976640000,0, 15511210043330985984000000,0, 10888869450418352160768000000,0, 8841761993739701954543616000000] |