TOT 425 1994 Autumn A J2 64 b , 64 w, isosceles, righttriangles in 8x8
Source:
June 12, 2024
combinatorics
Problem Statement
An by square is divided into by squares, and must be covered by black and white, isosceles, right-angled triangles (each square must be covered by two triangles). A covering is said to be “fine” if any two neighbouring triangles (i.e. having a common side) are of different colours. How many different fine coverings are there?(NB Vassiliev)