Binomial Coefficients in a java pgm

BinomialCoefficients.java

public class BinomialCoefficients

{

    public static void main(String[] args)

{

        int N = Integer.parseInt(args[0]);

        int[][] pascal = new int[N+1][];

        pascal[1] = new int[1 + 2];

        pascal[1][1] = 1;

        for (int n = 2; n <= N; n++)

       {

            pascal[n] = new int[n + 2];

            for (int k = 1; k < pascal[n].length - 1; k++)

                pascal[n][k] = pascal[n-1][k-1] + pascal[n-1][k];

        }

        int denominator = 1;

        for (int n = 1; n <= N; n++)

        {

            for (int k = 1; k < pascal[n].length - 1; k++)

           {

                System.out.print(pascal[n][k] + "/" + denominator + " ");

            }

            System.out.println();

            denominator += denominator;

        }

    }

}