Q. WAF to generate Lucas series. 1

#include<stdio.h>
#include<conio.h>

void lucas(int n);

void main()
{
    int n;
    printf("Enter number: ");
    scanf("%d", &n);
    lucas(n);
}

void lucas(int n)
{
    static int a=2, b=1, c;

    if(a==2)
        printf("%d  %d  ", a, b);
    if(n>2)
    {
        c=a+b;
        printf("%d  ", c);
        a=b;
        b=c;
        lucas(n-1);

    }
}