English

Sierpinski's triangle and the Prouhet-Thue-Morse word

Combinatorics 2007-05-23 v3

Abstract

Sierpinski's triangle is a fractal and the Prouhet-Thue-Morse word is sufficiently chaotic to avoid cubes. Here we observe that there is at least a tenuous connection between them: the Sierpinski triangle is evident in Pascal's triangle mod 2 whose inverse, as an infinite lower-triangular matrix, involves the Prouhet-Thue-Morse word.

Cite

@article{arxiv.math/0610932,
  title  = {Sierpinski's triangle and the Prouhet-Thue-Morse word},
  author = {David Callan},
  journal= {arXiv preprint arXiv:math/0610932},
  year   = {2007}
}

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R2 v1 2026-07-22T17:45:18.802Z