n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | -1 |
4 | 0 |
5 | -3 |
6 | 1 |
7 | -9 |
8 | 6 |
9 | -29 |
10 | 27 |
11 | -99 |
12 | 112 |
13 | -351 |
14 | 450 |
15 | -1275 |
16 | 1782 |
17 | -4704 |
18 | 6998 |
19 | -17531 |
20 | 27324 |
21 | -65758 |
22 | 106211 |
23 | -247669 |
24 | 411291 |
25 | -935107 |
26 | 1587391 |
27 | -3535398 |
28 | 6108103 |
29 | -13373929 |
30 | 23438144 |
31 | -50592067 |
32 | 89703467 |
33 | -191306745 |
34 | 342473589 |
[1,0,0,-1,0,-3,1,-9,6,-29,27,-99,112,-351,450, -1275,1782,-4704,6998,-17531,27324,-65758,106211, -247669,411291,-935107,1587391,-3535398,6108103, -13373929,23438144,-50592067,89703467,-191306745, 342473589] |