#include <bits/stdc++.h>
using namespace std;

#define rep(i,n) for(int i=0;i<(n);++i)
#define loop for(;;)
#define trace(var) cerr<<">>> "<<#var<<" = "<<var<<endl;
#define all(v) begin(v),end(v)
#define pb push_back
#define inf (1e9)
#define eps (1e-9)

typedef long long Integer ;
typedef long double Real;
const Real PI = acosl(-1);
typedef pair<int, int> P;

template<class S, class T> inline
ostream& operator<<(ostream&os, pair<S,T> p) {
  return os << '(' << p.first << ", " << p.second << ')';
}

template<class S, class T, class U> inline
ostream& operator<<(ostream&os, tuple<S,T,U> t) {
  return os << '('
    << get<0>(t) << ", "
    << get<1>(t) << ", "
    << get<2>(t) << ')';
}

template<class T> inline
ostream& operator<<(ostream&os, set<T> v) {
  os << "(set";
  for (T item: v) os << ' ' << item;
  os << ")";
  return os;
}

template<class T> inline
ostream& operator<<(ostream&os, vector<T> v) {
  if (v.size() == 0) { return os << "(empty)"; }
  os << v[0];
  for (int i=1, len=v.size(); i<len; ++i) os << ' ' << v[i];
  return os;
}

template<class T> inline
istream& operator>>(istream&is, vector<T>&v) {
  rep (i, v.size()) is >> v[i];
  return is;
}

//           ^   >  v   <
int dx[] = { -1, 0, 1,  0 };
int dy[] = {  0, 1, 0, -1 };

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<double> vd;
typedef vector<vd> vvd;
typedef vector<bool> vb;

int table[11][331];
bool used[10];

void search(int len, int d, int sum) {
  if (len == d) table[len][sum]++;
  else {
    rep (i, 10) {
      if (used[i]) continue;
      used[i] = true;
      search(len, d+1, sum + i * (d+1));
      used[i] = false;
    }
  }
}

void dp(int len) {
  rep (i, 10) used[i] = false;
  search(len, 0, 0);
}

int main() {
  cin.tie(0);
  ios::sync_with_stdio(0);
  cout.setf(ios::fixed);
  cout.precision(10);
  random_device dev;
  mt19937 rand(dev());

  rep (i, 10) {
    trace(i+1);
    dp(i+1);
  }

  int n,s;
  while (cin >> n >> s) {
    if (s > 330) {
      cout << 0 << endl;
    } else {
      cout << table[n][s] << endl;
    }
  }

  return 0;
}