Right angle triangle with number increased by 1

#include<stdio.h>
int main()
{
    int i,j,k,n;
    printf("Enter the number: ");
    scanf("%d",&n);
    k=1;

    for(i=1;i<=n;i++)
    {
        for(j=1;j<=i;j++,k++)
        {
            printf(" %d",k);
        }
        printf("\n");
    }
    return 0;
}