Answer:
0,3,8,15
Explanation:
f(n)=n^2-1
The first term is
f(1) = 1^2 -1 = 1-1 =0
The second terms is
f(2) = 2^2 -1 = 4-1 = 3
The third term is
f(3) = 3^2 -1 = 9-1 =8
The fourth term is
f(4) = 4^2 -1 = 16-1 =15
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