n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 2 |
3 | -4 |
4 | 10 |
5 | -28 |
6 | 76 |
7 | -184 |
8 | 378 |
9 | -620 |
10 | 708 |
11 | -328 |
12 | -36 |
13 | -4008 |
14 | 25960 |
15 | -83984 |
16 | 135066 |
17 | 188788 |
18 | -2232236 |
19 | 9070040 |
20 | -23335660 |
21 | 29933128 |
22 | 69732568 |
23 | -630906096 |
24 | 2551027132 |
25 | -7193660232 |
26 | 13576199192 |
27 | -5110303664 |
28 | -92186317112 |
[1,2,2,-4,10,-28,76,-184,378,-620,708,-328,-36, -4008,25960,-83984,135066,188788,-2232236,9070040, -23335660,29933128,69732568,-630906096,2551027132, -7193660232,13576199192,-5110303664,-92186317112] |