C++ :

#include <iostream>
using namespace std;  
int c1[121],c2[121];
int main()
{    
    int n,i,j,k;
    while (cin>>n)
    {
        for(i=0;i<=n;i++)
            c2[i]=0;
        for(i=0;i<=n;i++) 
            c1[i]=1;
        for(i=2;i<=n;i++)
        {    
            for(j=0;j<=n;j++)
                for(k=0;k+j<=n;k+=i)
                    c2[j+k]+=c1[j];
            for(j=0;j<=n;j++)
            {
                c1[j]=c2[j];
                c2[j]=0;
            }
        }
        cout<<c1[n]<<endl;
    }
    return 0;
}