Grayscale Palette

Basically Grayscale with the 52 shades from white to black with a 5 red green blue difference, that make any sense? (it's grayscale but you can make it even more detailed if you like, might take an hour or two longer than it took to make this though, the scale goes from 255-0 do the math that divided by 5 is 51 + the 0 which is black and you have 52 shades).