The next term of the sequence 1, 2, 5, 26, … is:

The next term of the sequence 1, 2, 5, 26, … is:
[A]152
[B]677
[C]50
[D]47

677
The series is based on following pattern :
\left ( 1 \right )^{2}+1=2
\left ( 2 \right )^{2}+1=5
\left ( 5 \right )^{2}+1=26
\left ( 26 \right )^{2}+1=677
Therefore, the next number of this series will be 677.
Hence option [B] is correct.

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