Sum of the Squares of the first N Natural Numbers

//Tanzila Islam

//Southeast University

//mail: tanzilamohita@gmail.com


#include<stdio.h>

int main()

{


    int n,i;

    int sum=0;


    printf("Enter the n i.e. max values of series: ");

    scanf("%d",&n);


    sum = (n * (n + 1) * (2 * n + 1 )) / 6;


    printf("Sum of the series : ");


    for(i =1;i<=n;i++){

         if (i != n)

             printf("%d^2 + ",i);

         else

             printf("%d^2 = %d ",i,sum);

    }


    return 0;

}