recursive solution to series : 1+2*4 + 3*5*7 + 4*6*8*10 .....

recursive-sol

int level,sol; //level of recusrsion
printf("Enter the level\n");
scanf("%d",&level);

sol = solve(1);

int solve(int n)
{
   int temp=1;
   for(int i=1;i<n+1;i++)
   {
      temp*=(n+ i*2);

   }
   
   if(n==level)
       return temp;

   return temp + solve(n+1);

}