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 A344281 #6 Jan 05 2025 19:51:42
%S A344281 2,3,5,6,7,9,10,13,14,17,18,23,25,26,27,34,37,41,43,46,47,49,50,53,54,
%T A344281 61,65,67,73,74,81,82,83,85,86,89,94,97,98,103,106,107,109,113,122,
%U A344281 123,125,127,129,130,134,137,146,149,157,161,162,163,166,167,169,170
%N A344281 Integers m for which F (mod m) has rotational symmetry.
%C A344281 Flanagan et al. define F (mod m) as the set of points [x_i, y_i] (mod m) where x_i = Fibonacci(i) and y_i = Fibonacci(i+1).
%H A344281 Patrick Flanagan, Marc S. Renault, and Josh Updike, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Papers1/53-1/FlanaganRenaultUpdike06032014.pdf">Symmetries of Fibonacci Points, Mod m</a>, Fibonacci Quart. 53 (2015), no. 1, 34-41. See p. 5.
%o A344281 (PARI) \\ where pisano(n) is A001175
%o A344281 hasrot(m) = {if (m==1, return (0)); if (m==2, return (1)); my(j = pisano(m)/2); my(vf = [fibonacci(j), fibonacci(j+1)]); Mod(vf, m) == [0, -1];}
%Y A344281 Cf. A000045, A001175, A275124, A344258.
%K A344281 nonn
%O A344281 1,1
%A A344281 _Michel Marcus_, May 14 2021