I agree it's a bit weird, usually the step amount either increase or decrease between steps.
This one have the following steps:
45, 45, 30, 60, 90, 30, 50, 10.
It would make more sense to start with big increments, and then go down, something like this:
90, 135, 180, 225, 270, 335, 350, 360
Or if more rounded numbers are prefered:
50, 100, 150, 200, 250, 300, 350, 360