n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | -4 |
5 | 10 |
6 | -19 |
7 | 35 |
8 | -60 |
9 | 85 |
10 | -110 |
11 | 165 |
12 | -243 |
13 | 286 |
14 | -329 |
15 | 466 |
16 | -620 |
17 | 680 |
18 | -751 |
19 | 969 |
20 | -1254 |
21 | 1366 |
22 | -1375 |
23 | 1771 |
24 | -2323 |
25 | 2310 |
26 | -2314 |
27 | 3010 |
28 | -3609 |
29 | 3654 |
30 | -3734 |
31 | 4495 |
32 | -5580 |
33 | 5622 |
34 | -5304 |
35 | 6590 |
36 | -8115 |
37 | 7770 |
38 | -7467 |
39 | 9426 |
40 | -11190 |
41 | 10660 |
42 | -10498 |
43 | 12341 |
44 | -14623 |
45 | 14740 |
46 | -13409 |
47 | 16215 |
48 | -20179 |
49 | 18459 |
50 | -17410 |
51 | 21506 |
[0,0,1,-4,10,-19,35,-60,85,-110,165,-243,286,-329, 466,-620,680,-751,969,-1254,1366,-1375,1771,-2323, 2310,-2314,3010,-3609,3654,-3734,4495,-5580,5622, -5304,6590,-8115,7770,-7467,9426,-11190,10660, -10498,12341,-14623,14740,-13409,16215,-20179, 18459,-17410,21506] |