#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<cmath>
#include<cstdlib>
#include<algorithm>
using namespace std;
const int MOD=1e9+7;
int n,a[5010],dp[5010];
int main()
{
      int tt;
      scanf("%d",&tt);
      while(tt--)
      {
            int sum=0;
            memset(dp,0,sizeof(dp));
            dp[0]=1;
            scanf("%d",&n);
            for(int i=1;i<=n;i++)
            {
                  scanf("%d",&a[i]);
                  sum+=a[i];
            }
            sum=sum/2;
            for(int i=1;i<=n;i++)
            {
                  for(int j=sum;j>=0;j--)
                  {
                        for(int k=1;k<=a[i];k++)
                        {
                              if(j>=k)
                              {
                                    dp[j]=(dp[j]+dp[j-k])%MOD;
                              }
                        }
                  }
            }
            printf("%d\n",dp[sum]);
      }
      return 0;
}