n | a(n) |
---|---|
0 | 1 |
1 | -4 |
2 | -24 |
3 | -104 |
4 | -424 |
5 | -1704 |
6 | -6824 |
7 | -27304 |
8 | -109224 |
9 | -436904 |
10 | -1747624 |
11 | -6990504 |
12 | -27962024 |
13 | -111848104 |
14 | -447392424 |
15 | -1789569704 |
16 | -7158278824 |
17 | -28633115304 |
18 | -114532461224 |
19 | -458129844904 |
20 | -1832519379624 |
21 | -7330077518504 |
[1,-4,-24,-104,-424,-1704,-6824,-27304,-109224, -436904,-1747624,-6990504,-27962024,-111848104, -447392424,-1789569704,-7158278824,-28633115304, -114532461224,-458129844904,-1832519379624, -7330077518504] |