n | a(n) |
---|---|
0 | 1 |
1 | -528 |
2 | -4608 |
3 | 312384 |
4 | 3664416 |
5 | 21745440 |
6 | 86782464 |
7 | 276703872 |
8 | 741794400 |
9 | 1758969264 |
10 | 3797729280 |
11 | 7568097984 |
12 | 14222957952 |
13 | 25253852064 |
14 | 43166426112 |
15 | 70518360960 |
16 | 112406614752 |
17 | 172631876832 |
18 | 260795119104 |
19 | 381636168000 |
20 | 552633117120 |
21 | 778105665024 |
[1,-528,-4608,312384,3664416,21745440,86782464, 276703872,741794400,1758969264,3797729280, 7568097984,14222957952,25253852064,43166426112, 70518360960,112406614752,172631876832, 260795119104,381636168000,552633117120, 778105665024] |