#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll mod = 1e9 + 7;
const int N = 200005;
const int INF = 0x3f3f3f3f;
ll a[N];
int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin >> n;
    ll tot = 0, sum = 0;
    for (int i = 0; i <= n; ++i) {
        cin >> a[i];
        if (a[i] > 0) {
            tot += a[i];
            sum += 1ll * i * a[i];
        }
    }
    if (sum == 0) {
        cout << "Yes\n";
    } else if (tot - a[0] <= 1) {
        cout << "No\n";
    } else if (sum % 2 != 0) {
        cout << "No\n";
    } else if (sum / 2 <= tot - a[0] - 1) {
        cout << "Yes\n";
    } else {
        cout << "No\n";
    }
    return 0;
}