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fibonacci series program in c#

The Fibonacci sequence is a series of numbers where the next number is the addition of the last two numbers, The Fibonacci series starts with 0, and 1.

fibonacci series in c# using for loop

using System;
class Fibonacci {
  public static void Main() {
      int n,a=0,b=1,next,i;
      Console.Write("Enter the length of series:");
      n=int.Parse(Console.ReadLine());
      Console.Write(a+"\t"+b);
      for(i=2;i<n;i++)
      {
          next=a+b;
          Console.Write("\t"+next);
          a=b;
          b=next;
      }
    }
}

output

Enter the length of series:8
0       1       1       2       3       5       8       13
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