MathDB
filling a nxn table

Source: 2019-20 International Dürer Competition, Category E+, P2

August 19, 2020
combinatoricstablecells

Problem Statement

How many ways can you fill a table of size n×nn\times n with integers such that each cell contains the total number of even numbers in its row and column other than itself? Two tables are different if they differ in at least one cell.