Answer:The terms are given by the formula
a
n
=
4
n
2
where
n
=
1
,
2
,
3
,
...
Step-by-step explanation:Write out the original sequence:
4
,
16
,
36
,
64
Write out the sequence of differences of the sequence:
12
,
20
,
28
Since this is not constant, the sequence is not arithmetic.
Write out the sequence of differences of that sequence: 8,8
