using System;
public class Program
{
public static void Main()
long i,j,k,ans=0, a, b;
string[] s=Console.ReadLine().Split();
a = long.Parse(s[0]);
b = long.Parse(s[1]);
for(i=0;i<=a;i++)
for(j=0;j<=a-i;j++)
for(k=0;k<=a-i-j;k++)
if(i+j+k<=a && i*j*k<=b)
ans++;
}
Console.WriteLine(ans);