CC Ender Cycler

local side = "left"

while (true) do
  for a = 0,15,1 do
    for b = 0,15,1 do
      for c = 0,15,1 do
        tile = peripheral.wrap(side)
        tile.setColors(math.pow(2, a),math.pow(2, b),math.pow(2, c))
        sleep(1)
      end
    end
  end
end