CHAP - EDITORIAL

Difficulty: Easy - Medium

Pre requisites: Basic mathematics

Problem link:

Contest problem link

Practice problem link

Problem:
To find the nth number in the series:
1 2 7 20 61…

Explanation:

The problem requires you to identify the pattern of growth of the sequence mentioned in the problem.

  1. It is a series where the number at nth position is

    T(n)=2*T(n-1)+3*T(n-2)

Problem setter’s solution: SOLUTION

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