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 A368121 #22 Dec 19 2024 11:51:32 %S A368121 0,5,6,7,8,2,3,4,1,13,15,17,19,14,10,16,11,18,12,20,9,26,27,28,25,21, %T A368121 22,23,24,38,39,40,41,42,43,44,37,30,31,32,33,34,35,36,29,57,58,59,60, %U A368121 62,63,64,65,66,67,68,61,46,47,48,45,50,51,52,53,54,55,56,49,70,82,72,73,84,75,76,86,78,79,88,69,71,103 %N A368121 A variant of A367150 with application of the distance minimization to an 8-fold symmetrically expanded sector between 0 and Pi/4 of the pair of rotated grids created by the strip bijection of A307110. %H A368121 Hugo Pfoertner, <a href="/A368121/b368121.txt">Table of n, a(n) for n = 0..10000</a> %H A368121 Klaus Nagel, <a href="/A368121/a368121_1.pdf">Symmetrized strip bijection</a>, with mirrored repetition of sector 0. %H A368121 Hugo Pfoertner, <a href="/A368121/a368121.png">Distance minimization applied to symmetrized strip bijection</a>, using sector between 0 and Pi/4. %H A368121 Hugo Pfoertner, <a href="https://www.randomwalk.de/sequences/a368121_PARI.txt">PARI program</a>. %o A368121 (PARI) \\ See Pfoertner link. %Y A368121 A305575, A305576 are used for enumeration of the grid points. %Y A368121 Cf. A307110, A367150, A368124, A368125, A368126. %K A368121 nonn,look %O A368121 0,2 %A A368121 _Hugo Pfoertner_, Jan 05 2024