Answer and Explanation
Your Answer is
Correct Answer is B
Explanation
Substitute n=6 into the calculation method, we can know that a6=a5+52=39+5 2=64. Therefore B.
17. The first 5 terms of a sequence are given in the table below. The sequence is defined by setting 
and
for 
. What is the sixth term, 
, of this sequence ?
