This is also an interesting series.

#include<conio.h>

#include<stdio.h>

void main()

{         clrscr();

                  int i,a,n;

                  printf("enter limit=");

                  scanf("%d",&n);

                  a=3;

                  printf("%d",a);

                  for(i=1;i<=n;i++)

                  {a=a+2;

                   printf(" %d",a);}

                    getch();}