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 A307447 #19 May 29 2024 11:49:01 %S A307447 1,1,3,5,5,5,3,3,3,5,7,7,9,11,11,11,13,15,15,17,19,19,19,17,17,17,19, %T A307447 21,21,21,19,19,19,17,15,15,13,11,11,11,9,9,9,11,13,13,13,11,11,11,13, %U A307447 15,15,17,19,19,19,21,23,23,25,27,27,27,25,25,25,27 %N A307447 Second coordinate of a contiguous path on the odd numbered points of a square lattice leading to a distance-limited bijection with the even numbered points of a square lattice rotated by Pi/6 around the common point (0,0). A307446 gives the first coordinate. %C A307447 For a description of the construction and visualizations see A307446. %H A307447 Hugo Pfoertner, <a href="/A307447/b307447.txt">Table of n, a(n) for n = 1..10000</a> %H A307447 <a href="/index/Con#coordinates_2D_curves">Index entries for sequences related to coordinates of 2D curves</a> %o A307447 (PARI) \\ See A307446 for PARI code. %Y A307447 Cf. A307110, A307446. %Y A307447 Coordinates of corresponding points on rotated lattice: A307482, A307483. %K A307447 nonn %O A307447 1,3 %A A307447 _Hugo Pfoertner_, Apr 10 2019