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Write the first five terms if n^(th) ter...

Write the first five terms if `n^(th)` term is `a_(n)=n(n+2)`

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`a_(n)=n(n+2)`. Putting n= 1,2,3,4,5, we get
`a_(1)=1(1+2)=3,a_(2)=2(2+2)=8`,
`a_(3)=3(3+2)=15`
`a_(4)=4(4+2)=24,a_(5)=5(5+2)=35`
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