[0xDEAD10CC]

Your program should be taking input somewhere, so the 13 you have hardcoded should be a number the user inputs (from what I understand).

Code:

#define f(r,k,n)while((++r,r%=n)?printf("\t%d",r*k):(puts(""),++k<n))

*69

Code:

int r=0,k=1; int n=13; f(r,k,n);

?

The general solution is still there. Function calls can be inlined so I don't see a reason why macros shouldn't be allowed.