n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | -16 |
7 | 0 |
8 | 80 |
9 | 240 |
10 | 656 |
11 | 1936 |
12 | 6000 |
13 | 19088 |
14 | 61792 |
15 | 202832 |
16 | 673888 |
17 | 2263392 |
18 | 7677712 |
19 | 26280800 |
20 | 90709616 |
21 | 315486768 |
22 | 1104982560 |
23 | 3895248720 |
24 | 13813470240 |
25 | 49256281920 |
26 | 176536299168 |
27 | 635710344672 |
28 | 2299280127328 |
29 | 8350257302304 |
30 | 30441306959040 |
[0,0,0,0,0,0,-16,0,80,240,656,1936,6000,19088, 61792,202832,673888,2263392,7677712,26280800, 90709616,315486768,1104982560,3895248720, 13813470240,49256281920,176536299168,635710344672, 2299280127328,8350257302304,30441306959040] |