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

Answer: (B)

$1957$

$\begin{array}{c}1\times 1+1=2\\ 2\times 2+1=5\\ 5\times 3+1=16\\ 16\times 4+1=65\\ 65\times 5+1=326\\ 326\times 6+1=1957\end{array}$