x i − 4
x i − 3
x i − 2
x i − 1
x i
x i + 1
x i + 2
x i + 3
x i + 4
0
210/h3
1680/h3
−3990/h3
3990/h3
−1680/h3
−210/h3
840/h4
−7560/h4
13,440/h4