This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A037180 #13 Jan 05 2025 19:51:35 %S A037180 1,1,1,2,2,2,1,3,2,2,3,3,2,4,2,2,2,3,3,4,3,3,2,2,2,3,3,2,4,2,4,3,2,4, %T A037180 2,4,3,5,2,2,2,5,4,2,3,5,6,3,2,3,2,4,3,4,1,2,2,7,4,4,4,2,5,4,3,2,5,4, %U A037180 2,3,2,2,3,4,5,2,2,5,3,3,4,6,4,4,4,4,2,3,4,6,2,2,6,6,3,2,2,3,5,7,5,2 %N A037180 Number of different cycle lengths when squaring modulo n-th prime. %H A037180 E. L. Blanton, Jr., S. P. Hurd and J. S. McCranie, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Scanned/30-4/blanton.pdf">On a digraph defined by squaring modulo n</a>, Fibonacci Quart. 30 (Nov. 1992), 322-333. %Y A037180 Cf. A037178, A037179. %K A037180 nonn %O A037180 1,4 %A A037180 _Jud McCranie_