Thanks hammerhand.
I understood it.
In SmithRewardCalculator..
private static readonly int[][][] m_GoldTable = new int[][][]
{
new int[][] // 1-part (regular)
{
new int[] { 1500, 3000, 6000, 12000, 24000, 48000, 96000, 192000, 384000 },
..................
},
new int[][] //...