n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -3 |
3 | 3 |
4 | -12 |
5 | 30 |
6 | -102 |
7 | 318 |
8 | -1083 |
9 | 3657 |
10 | -12747 |
11 | 44715 |
12 | -159222 |
13 | 571332 |
14 | -2068608 |
15 | 7538664 |
16 | -27646374 |
17 | 101915850 |
18 | -377496030 |
19 | 1404077790 |
20 | -5242135728 |
21 | 19637862132 |
22 | -73793090676 |
23 | 278068062756 |
24 | -1050503580534 |
25 | 3977985415746 |
26 | -15096209345958 |
27 | 57403753019238 |
28 | -218683959367908 |
[1,1,-3,3,-12,30,-102,318,-1083,3657,-12747,44715, -159222,571332,-2068608,7538664,-27646374, 101915850,-377496030,1404077790,-5242135728, 19637862132,-73793090676,278068062756, -1050503580534,3977985415746,-15096209345958, 57403753019238,-218683959367908] |