Answer
See below.
Work Step by Step
According to the exercise:
$a_1=6-1^2=5$
$a_2=6-2^2=2$
$a_3=6-3^2=-3$
$a_4=6-4^2=-10$
$a_5=6-5^2=-19$
$a_6=6-6^2=-30$
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