MathDB
tiling a square of side n with an 9 piece 1-3-5 dominos

Source: 1995 ITAMO p1

January 28, 2020
combinatoricsTiling

Problem Statement

Determine for which values of nn it is possible to tile a square of side nn with figures of the type shown in the picture
[asy] unitsize(0.4 cm);
draw((0,0)--(5,0)); draw((0,1)--(5,1)); draw((1,2)--(4,2)); draw((2,3)--(3,3)); draw((0,0)--(0,1)); draw((1,0)--(1,2)); draw((2,0)--(2,3)); draw((3,0)--(3,3)); draw((4,0)--(4,2)); draw((5,0)--(5,1)); [/asy]