n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 5 |
6 | 15 |
7 | 35 |
8 | 70 |
9 | 125 |
10 | 200 |
11 | 275 |
12 | 275 |
13 | 0 |
14 | -1000 |
15 | -3625 |
16 | -9500 |
17 | -21250 |
18 | -42500 |
19 | -76875 |
20 | -124375 |
21 | -171875 |
22 | -171875 |
23 | 0 |
24 | 621875 |
25 | 2250000 |
26 | 5890625 |
27 | 13171875 |
28 | 26343750 |
29 | 47656250 |
30 | 77109375 |
31 | 106562500 |
32 | 106562500 |
33 | 0 |
34 | -385546875 |
35 | -1394921875 |
36 | -3651953125 |
[0,0,0,0,1,5,15,35,70,125,200,275,275,0,-1000, -3625,-9500,-21250,-42500,-76875,-124375,-171875, -171875,0,621875,2250000,5890625,13171875, 26343750,47656250,77109375,106562500,106562500,0, -385546875,-1394921875,-3651953125] |