benchmarks.wiki / Public workspace

Omni-MATH / In how many ways can we enter numbers from the set 1,2,3,4 into a 4×4 array so that all of the following conditions hold? (a) Each row contains all four numbers. (b) Each column … · Discussion

Discussing In how many ways can we enter numbers from the set {1,2,3,4} into a 4×4 array so that all of the following conditions hold? (a) Each row contains all four numbers. (b) Each column … · Omni-MATH

Posts

Chronological order within this page.

Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.