Question

2,7,27,107,427,?
find the answer immediately ​

Answer 1

Answer:

1st term → 2+(5×0²) = 2

2nd term → 2 +(5 ×1²) = 7

3rd term → 7 +(5 ×2²) = 27

4th term → 27 +(5 ×4²) = 107

5th term → 107 +(5 ×8²) = 427

6th term → 427 +(5 ×16²) = 1707

answer is 1707