@article {MATHEDUC.06315178,
author = {Pagni, David},
title = {Counting hexagons in a triangle of triangles.},
year = {2014},
journal = {Mathematics in School},
volume = {43},
number = {2},
issn = {0305-7259},
pages = {19-21},
publisher = {Mathematical Association (MA), Leicester},
abstract = {Based on the initial figure of a regular triangle consisting of equilateral triangles, the article contains an investigation where the task is to find all regular hexagons in such triangles when the number of equilateral-triangle components increases, i.e. when the number of rows of the initial figure increases.},
reviewer = {Peter D\"urr (Linkenheim)},
msc2010 = {F60xx (H20xx I30xx)},
identifier = {2014e.00468},
}