If the NFL does schedule games based on five distinct blocks (as I've seen theorized) there are far fewer permutations:
— Warren Sharp (@SharpFootball) May 6, 2020
Each team plays one non-conf division (wks 1-4) & one in-conf division (wks 11-14)
Each plays division games wks 7-10 (+bye) & 15-17
One permutation for KC: pic.twitter.com/5qqHIb9Kso