TheEnd.cs Unity - odd e mirrored

using System;
using System.Collections.Generic;
using UnityEngine;

public class TheEnd : MonoBehaviour
{

    public Dictionary<int, Dictionary<int, List<string>>> theend = new Dictionary<int, Dictionary<int, List<string>>>();

    // Use this for initialization
    void Start()
    {
        // Change these values for different resolutions
        // i_max = resolution
        // x, y values define the viewing window (too low = cut off edges)
        int i_max = 128;
        int x_min = -512;
        int x_max = 512;
        int y_min = 0;
        int y_max = 1024;
        int set_size = 12;

        CreateTheEnd(i_max, x_min, y_min, x_max, y_max);
        Output(i_max, x_min, y_min, x_max, y_max, set_size);
    }

    // Update is called once per frame
    void Update()
    {

    }

    void CreateTheEnd(int i_max = 64, int x_min = -64, int y_min = 0, int x_max = 64, int y_max = 64)
    {
        theend.Clear();

        for (int i = 0; i < i_max; i++)
        {
            for (int j = 0; j < i; j++)
            {
                int a = i - j;
                int b = i + j;
                int c = a * b;
                bool odd = c % 2 == 1;
                int d = (int)Math.Sqrt(c);
                int e = c - (d * d);
                int f = e - ((2 * d) + 1);
                int n = i - d;
                int x = d - a;

                if (!theend.ContainsKey(e)) theend[e] = new Dictionary<int, List<string>>();

                if (!theend[e].ContainsKey(n))
                {
                    theend[e][n] = new List<string>();
                }

                if (!theend.ContainsKey(f)) theend[f] = new Dictionary<int, List<string>>();

                if (!theend[f].ContainsKey(n - 1)) theend[f][n - 1] = new List<string>();

                string text = "{" + string.Format("{0}:{1}:{2}:{3}:{4}:{5}", e, n, d, x, a, b) + "}";

                theend[e][n].Add(text);

                text = "{" + string.Format("{0}:{1}:{2}:{3}:{4}:{5}", f, n - 1, d + 1, x + 1, a, b) + "}";

                theend[f][n - 1].Add(text);
            }
        }
    }

    void Output(int i_max = 64, int x_min = -64, int y_min = 0, int x_max = 64, int y_max = 64, int set_size = 12)
    {
        for (int y = 0; y < y_max; y++)
        {
            for (int z = 0; z < set_size; z++)
            {
                for (int x = x_min; x < x_max; x++)
                {
                    if (theend.ContainsKey(x) && theend[x].ContainsKey(y) && theend[x][y].Count > z)
                    {
                        String[] values = theend[x][y][z].Split(':');

                        int e = Int32.Parse(values[0].Split('{')[1]);
                        int n = Int32.Parse(values[1]);
                        int d = Int32.Parse(values[2]);
                        int xx = Int32.Parse(values[3]);
                        int a = Int32.Parse(values[4]);
                        int b = Int32.Parse(values[5].Split('}')[0]);
                        int c = a * b;

                        float red = (float)xx / (i_max / 2);
                        float green = (float)a / i_max;
                        float blue = (float)b / (i_max * 2);

                        int ypos = e % 2 == 0 ? n : -n;
                        //int zpos = e % 2 == 0 ? d : -d;

                        GameObject cube = GameObject.CreatePrimitive(PrimitiveType.Cube);
                        cube.transform.position = new Vector3(e, ypos, d);
                        cube.GetComponent<Renderer>().material.color = new Color(red, green, blue);
                        cube.GetComponent<MeshRenderer>().receiveShadows = false;
                        cube.GetComponent<MeshRenderer>().shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.Off;

                    }
                }
            }
        }
    }
}