Not sure about odd or even numbers but potatoes technically reproduce via triploid seeds, triplets instead of pairs of chromosomes. It is why you almost never see actual potato seeds for sale because it is the work of a lifetime to actually breed stable genetics in something like that. I think there may be one or two named seed varieties, usually they are grown from "seed potatoes" which are just potatoes or root tubers, that can sprout. They aren't actual seeds. When they sprout the leaves produce enough energy to produce more potatoes thus repeating the cycle.