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Let T(n)=(an^(2)+bn+c)2^(an^(2)+bn) be t...

Let `T_(n)=(an^(2)+bn+c)2^(an^(2)+bn)` be the `n^(th)` term of the series `1+2.2^(1)+4.2^(3)+7.2^(6)+....` then

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