Keywords: Perron tree.svg en Construction of a Perron tree by dividing a triangle into <math>2 n</math> subtriangles and recombining them with partial overlaps Cases <math>n 1</math> and <math>n 3</math> are illustrated Perrontree2 jpg 50 2013-01-30 04 26 UTC Perrontree2 jpg Jazzam derivative work Mikhail Ryazanov Kakeya set |