The Hurt-Sada Array and Zeckendorf Representations
Number Theory
2025-01-16 v1 Discrete Mathematics
Formal Languages and Automata Theory
Combinatorics
Abstract
Wesley Ivan Hurt and Ali Sada both independently proposed studying an infinite array where the 'th row consists of the non-negative integers in increasing order. Thereafter the 'th row is formed from the 'th row by "jumping" the single entry by places to the right. Sada also defined a sequence defined to be the first number that jumps over. In this note I show how the Hurt-Sada array and Sada's sequence are intimately connected with the golden ratio and Zeckendorf representation. I also consider a number of related sequences.
Cite
@article{arxiv.2501.08823,
title = {The Hurt-Sada Array and Zeckendorf Representations},
author = {Jeffrey Shallit},
journal= {arXiv preprint arXiv:2501.08823},
year = {2025}
}