n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | -3 |
5 | 6 |
6 | -9 |
7 | 9 |
8 | 0 |
9 | -27 |
10 | 81 |
11 | -161 |
12 | 231 |
13 | -165 |
14 | -363 |
15 | 2079 |
16 | -6435 |
17 | 16071 |
18 | -35343 |
19 | 70686 |
20 | -130339 |
21 | 222717 |
22 | -352715 |
23 | 515944 |
24 | -692967 |
25 | 849299 |
26 | -950455 |
27 | 996435 |
28 | -1042415 |
29 | 1042415 |
30 | 1 |
31 | -6926071 |
32 | 36516481 |
33 | -137549665 |
34 | 436362817 |
35 | -1233496132 |
36 | 3197432557 |
[0,0,1,-3,6,-9,9,0,-27,81,-161,231,-165,-363,2079, -6435,16071,-35343,70686,-130339,222717,-352715, 515944,-692967,849299,-950455,996435,-1042415, 1042415,1,-6926071,36516481,-137549665,436362817, -1233496132,3197432557] |