Question

Find the next number in the sequence.

2, 3, 8, 63, __

• A. 80
• B. 143
• C. 1968
• D. 3968
• E. None of these

Answer 1

The correct option is D

3968

2${}^2$ - 1 = 3, 3${}^2$ - 1 = 8, 8${}^2$ -1= 63.

Next term = 63${}^2$ - 1 = 3969 - 1 = 3968.