On nonconvex constellations among primes I
Abstract
Extending our work on the -tuple conjecture, we apply those methods to the Engelsma counterexamples (narrow constellations) of length and span . We track the evolution of these counterexamples from inadmissible driving terms starting in the cycle of gaps up through their first appearance in . We continue developing primorial coordinates for each admissible instance through a breadth-first exhaustive search through , at which point we need to develop strategies for depth-first searches for an instance that would survive Eratosthenes sieve. Our calculations show that {\em none} of the -counterexamples occur before . For each of the Engelsma -counterexamples we calculate its asymptotic relative population, among other constellations of length , and we study how these counterexamples work. In this version (9 April) we have completed the calculations in Table 6 to include all of the terms in primorial expansion for the smallest initial generator and corrected a typographical error on page 6.
Cite
@article{arxiv.2603.25896,
title = {On nonconvex constellations among primes I},
author = {Fred B. Holt},
journal= {arXiv preprint arXiv:2603.25896},
year = {2026}
}
Comments
16 pages, 7 figures