Fibonacci series is the series of numbers in which the [pmath]i^th [/pmath] number is the sum of two of its preceding numbers, i.e [pmath](i-1)^th [/pmath] and [pmath](i-2)^th [/pmath] numbers.

The first two numbers of the series are 0 and 1 resp. Thus, the series that follows is :

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Fibonacci series is the series of numbers in which the [pmath]i^th [/pmath] number is the sum of two of its preceding numbers, i.e [pmath](i-1)^th [/pmath] and [pmath](i-2)^th [/pmath] numbers.

The first two numbers of the series are 0 and 1 resp. Thus, the series that follows is :

0,1,1,2,3,5,8,13,21,34,….

Correction: In the Golden Rule formula, it’s X(i) not X(n)