Custom anchors calculations

I am trying to calculate custom anchors for yolo V3. At the moment, I can't validate my calculations based on COCO 2017 training dataset that supposedly was used to generate the original yolo V3 anchors i.e.

(116, 90), (156, 198), (373, 326), (30, 61), (62, 45), (59, 119), (10, 13), (16, 30), (33, 23)

I was wondering, is anchor recalculation (on custom dataset) something you performed at some point ? If my calculation turns out to be correct, maybe this is something you would be interested in implementing in lightnet ?