//#include <bits/stdc++.h>
#include <cstdio>
#include <iostream>
using namespace std;
#define all(v) (v).begin(),(v).end()
#define sz(v) ((int)((v).size()))
typedef long long ll;
typedef pair<int,int> ii;

const int MAXN = 305;
const int dx[4] = {0, 1, 0, -1};
const int dy[4] = {1, 0, -1, 0};

int n, m, diagCount;

int d1[2*MAXN][2*MAXN];
int d2[2*MAXN][2*MAXN];
int p1[2*MAXN][2*MAXN];
int p2[2*MAXN][2*MAXN];
char a[MAXN][MAXN];

inline bool ok(int x, int y) {
    return (0 <= x && x < n) && (0 <= y && y < m);
}

inline void makePrefixSum(int* arr) {
    for (int i = 1; i < diagCount; i++) {
        arr[i] += arr[i - 1];
    }
}

inline int prefSum(int* p, int a, int b, int dist) {
    if (a > b) {
        int t = a;
        a = b;
        b = t;
    }
    if (b >= diagCount) {
        b = diagCount - 1;
    }
    if (a < 0) {
        a = 0;
    }

    b -= dist;
    if (a > b) return 0;

    int res = p[b];
    if (a > 0) res -= p[a - 1];
    return res;
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cout.precision(15); cout.setf(ios::fixed);

    scanf("%d%d", &n, &m);
    for (int i = 0; i < n; i++) {
        scanf("%s", a[i]);
    }
    diagCount = n + m - 1;

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            if (a[i][j] == '#') {
                int z1 = i + j;
                int z2 = i + (m - j - 1);
                d1[z1][z2]++;
                d2[z2][z1]++;
            }
        }
    }

    ll ans = 0;
    for (int dist = 2; dist <= n + m - 2; dist += 2) {
        for (int z1 = 0; z1 < diagCount; z1++) {
            for (int z2 = 0; z2 < diagCount; z2++) {
                p1[z1][z2] = 0;
                p2[z1][z2] = 0;
            }
        }
        for (int z1 = 0; z1 < diagCount; z1++) {
            for (int z2 = 0; z2 < diagCount; z2++) {
                if (d1[z1][z2] == 1 && z2 + dist < diagCount && d1[z1][z2 + dist] == 1) {
                    p1[z1][z2] = 1;
                }
                if (d2[z2][z1] == 1 && z1 + dist < diagCount && d2[z2][z1 + dist] == 1) {
                    p2[z2][z1] = 1;
                }
            }
        }
        for (int z = 0; z < diagCount; z++) makePrefixSum(p1[z]);
        for (int z = 0; z < diagCount; z++) makePrefixSum(p2[z]);

        ll curDistAns = 0;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                if (a[i][j] == '#') {
                    int cellAns = 0;
                    for (int k = 0; k < 4; k++) {
                        int xs = i + dist * dx[k];
                        int ys = j + dist * dy[k];
                        int xf = i + dist * dx[(k + 1) & 3];
                        int yf = j + dist * dy[(k + 1) & 3];
                        int z1s = xs + ys;
                        int z2s = xs + (m - ys - 1);
                        int z1f = xf + yf;
                        int z2f = xf + (m - yf - 1);
                        if (z1s == z1f) {
                            if (0 <= z1s && z1s < diagCount) {
                                int add = prefSum(p1[z1s], z2s, z2f, dist);
                                cellAns += add;
                            }
                        } else if (z2s == z2f) {
                            if (0 <= z2s && z2s < diagCount) {
                                int add = prefSum(p2[z2s], z1s, z1f, dist);
                                cellAns += add;
                            }
                        } else {
                            throw 0;
                        }
                        int xm = (xs + xf) / 2;
                        int ym = (ys + yf) / 2;
                        if (ok(xs, ys) && ok(xm, ym)) {
                            if (a[xs][ys] == '#' && a[xm][ym] == '#') {
                                cellAns--;
                            }
                        }
                    }
                    curDistAns += cellAns;
                }
            }
        }
        ans += curDistAns;
    }

    cout << ans << endl;
}


Measured memory_bytes: 6144