#include<stdio.h>
#include<conio.h>
void main()
{
int i,j=0,k,n,d,a[100],sum=0;
clrscr();
printf("\nEnter Nth Term:");
scanf("%d",&n);
for(i=0;i<n;i++)
{
j=j+2;
a[i]=j;
}
i=0;
j=0;
printf("\nSeries is:");
while(1)
{
k=2;
for(j=0;j<=i;j++)
{
d=k*a[j];
sum=sum+d;
if(j==(n-1))
{
printf("%d=%d",d,sum);
getch();
exit(0);
}
else
printf("%d+",d);
k=k+2;
}
i++;
}
}
Output:
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