n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 2 |
4 | -8 |
5 | -56 |
6 | -112 |
7 | 848 |
8 | 9088 |
9 | 25216 |
10 | -310528 |
11 | -4334848 |
12 | -14701568 |
13 | 270029824 |
14 | 4554426368 |
15 | 17536821248 |
16 | -458243735552 |
17 | -8926669144064 |
18 | -37024075153408 |
19 | 1341521605885952 |
20 | 29290212127670272 |
21 | 125297096967061504 |
22 | -6224109737622372352 |
[0,1,2,2,-8,-56,-112,848,9088,25216,-310528, -4334848,-14701568,270029824,4554426368, 17536821248,-458243735552,-8926669144064, -37024075153408,1341521605885952, 29290212127670272,125297096967061504, -6224109737622372352] |