Diagonal sawtooth with expansion factor 6
Population is unbounded but does not tend to infinity. Its graph is
a sawtooth function with ever-increasing teeth. More specifically,
the population in generation t = 8*6^n - 216 (n >= 2) is t/36 + 558,
but the population in generation 32*6^n - 429 (n >= 2) is only 469.
Dean Hickerson, dean@ucdmath.ucdavis.edu 5/14/91
