Here are the RGB values for the first few squares in that sequence. I've got a pulled pork to enjoy; see if you can find any sort of pattern. Again, this is only the first few.
RGB(70, 105, 114)
RGB(115, 116, 32)
RGB(99, 111, 110)
RGB(118, 101, 114)
RGB(116, 32, 116)
RGB(104, 101, 32)
RGB(104, 101, 120)
RGB(97, 100, 101)
RGB(99, 105, 109)
RGB(97, 108, 32)
RGB(116, 111, 32)