#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES
#include <cfloat>
#include <climits>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <iostream>
#include <memory>
#include <string>

#include <algorithm>
#include <complex>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <vector>

using namespace std;

#ifdef _MSC_VER
#define __typeof__ decltype
#endif

#define ITER(c)             __typeof__((c).begin())
#define FOREACH(it, c)      for (ITER(c) it=(c).begin(); it != (c).end(); ++it)
#define RITER(c)            __typeof__((c).rbegin())
#define RFOREACH(it, c)     for (RITER(c) it=(c).rbegin(); it != (c).rend(); ++it)
#define REP(i, n)           REPEAT(i, 0, n)
#define RREP(i, n)          RREPEAT(i, 0, n);
#define REPEAT(i, k, n)     for(int i = (k); i < (k+n); ++i)
#define RREPEAT(i, k, n)    for(int i = (k)+(n)-1; i >= (k); ++i)
#define ALL(c)              (c).begin(), (c).end()
#define LLPOW(p1,p2)        ((ll)pow((double)(p1), (int)p2))
#define ESIZEOF(A)          (sizeof(A)/sizeof((A)[0]))
#define MIN(p1,p2)          (((p1)<(p2))?(p1):(p2))
#define MAX(p1,p2)          (((p1)>(p2))?(p1):(p2))
#define CIN_NO_SYNC         do { cin.tie(0); ios_base::sync_with_stdio(false); } while(0)
#define GETSTR(p)           fgets((p), sizeof(p), stdin)
#define CHOMP(p)            do{ char *_q = (p) + strlen(p)-1; if(*_q == '\n' || *_q == '\r') *_q = 0; } while(0)
#define mp                  make_pair

typedef long long ll;
typedef unsigned long long ull;

#define X real()
#define Y imag()
typedef double D;
typedef complex<D> P;
#define EPS (1e-9)

#ifdef _DEBUG
#define pf printf
#define pr(n) do { cout << #n " = " << (n) << endl; } while(0)
#else
#define pf(...) /* */
#define pr(...) /* */
#endif

inline void bitset(unsigned int &p, int n){ p |= (1<<n); }
inline void bitunset(unsigned int &p, int n){ p &= ~(1<<n); }
inline bool bitisset(unsigned int p, int n){ return !!(p & (1<<n)); };
inline int bitcount(int n){int c=0;for(;n;n&=n-1) c++; return c; }

int memo[11][331][1<<10];
int hit = 0;

int rec(int n, int idx, int s, unsigned int used){
    int count = 0;
    if(n < idx){
        if(s == 0){
            //pf("hit!!\n");
            return 1;
        }
        return 0;
    }

    if(memo[n-idx][s][used] >= 0){
        hit++;
        return memo[n-idx][s][used];
    }

    REP(i,10){
        if(bitisset(used, i)) continue;
        if(s < idx*i) break;

        unsigned int used2 = used;
        bitset(used2, i);

//#ifdef _DEBUG
//        REP(j,idx-1) printf("   ");
//        printf("%d*%d : %d %08x\n", idx, i, s, used);
//#endif
        count += rec(n, idx + 1, s - idx*i, used2);
    }
    memo[n-idx][s][used] = count;
    return count;
}

void solve2(int n, int s){
    memset(memo, -1, sizeof(memo));
    if(s > 0*1 + 1*2 + 2*3 + 3*4 + 4*5 + 5*6 + 6*7 + 7*8 + 8*9 + 9*10){ //330
        cout << 0 << endl;
        return;
    }
    int count = rec(n, 1, s, 0);
    cout << count << endl;
}

// TLEする
void solve1(int n, int s){
    char t[10];
    REP(i,10) t[i] = i;
    int count = 0;
    int pre = -1;
    do {
        if(t[n-1] == pre) continue;
        //REP(i,n) pf("%d ", t[i]); pf("\n");
        int total = 0;
        REP(i,n) total += t[i]*(i+1);
        if(total == s){
            //REP(i,n) pf("%d*%d ", i+1, t[i]); pf("\n");
            count++;
        }
        pre = t[n-1];
    } while(next_permutation(t, t+10));
    cout << count << endl;
}

int main(){
    int n,s;
    while(cin >> n >> s){
        solve2(n,s);
    }
    return 0;
}

Measured memory_bytes: 15732