9000063807

SubArea: 
Introduction to sequences
Level: 
A
Project ID: 
9000063807
Accepted: 
1
Clonable: 
0
Easy: 
1
Among the numbers \(5\), \(15\), \(28\), \(47\) identify the number which is not a member of the sequence \(\left (2n^{2} - 3\right )_{n=1}^{\infty }\).
\(28\)
\(5\)
\(15\)
\(47\)