Question

the next term in the following series is 1,2,5,16,65,326,?
a.1956
b.1957
c.1955
d.1987

Answer 1

a. 1956 is Right ! ................

Answer 2

1

2 = 1 × 1 + 1

5 = 2 × 2 + 1

16 = 5 × 3 + 1

65 = 16 × 4 + 1

326 = 65 × 5 + 1

therefore,

= 326 × 6 + 1

= 1956 + 1

= 1957​