Question 1168274
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In this problem, you are given a recurrent formula to calculate next term of the sequence

using its previous step.  You also are given the first term.


So, to get the second term, simply substitute first term a1 = 3 into the formula

    a2 = 2*3 + 5 = 6 + 5 = 11.


To get the third term, substitute the second term a2 = 11 into the formula

    a3 = 2*11 + 5 =22 + 5 = 27.


Continue doing this way until you will get a5.
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