n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -5 |
3 | 20 |
4 | -55 |
5 | 120 |
6 | -205 |
7 | 220 |
8 | 145 |
9 | -1680 |
10 | 5995 |
11 | -15580 |
12 | 32345 |
13 | -51480 |
14 | 44195 |
15 | 80620 |
16 | -543455 |
17 | 1770720 |
18 | -4365605 |
19 | 8608820 |
20 | -12607255 |
21 | 7384920 |
22 | 33496595 |
23 | -170910980 |
24 | 516160945 |
25 | -1210088880 |
26 | 2259550795 |
27 | -2987758780 |
28 | 653281145 |
29 | 12325669320 |
[1,0,-5,20,-55,120,-205,220,145,-1680,5995,-15580, 32345,-51480,44195,80620,-543455,1770720,-4365605, 8608820,-12607255,7384920,33496595,-170910980, 516160945,-1210088880,2259550795,-2987758780, 653281145,12325669320] |