sequence rendering with progressive frame number

I frequently use step rendering to check animation and estimate the rendering time of a full sequence. Most of the time i use step of 8 or 16 to be able to subdivide it

i was wondering why no software (i know) implement a "subdivisable" sequence mode exemple for a 25 frame sequence with a first step of 8: 1-9-17-25 5-13-21-3-7-11-15-19-23 2-4-6-8-10-12-14-16-18-20-22 This could permit to estimate more precisely the computation time of sequence