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 A352197 #14 Mar 27 2022 18:50:56 %S A352197 1,2,3,4,9,21,10,6,5,13,18,23,28,8,7,15,37,25,40,17,12,27,48,29,11,19, %T A352197 14,31,59,43,62,33,16,35,22,45,77,47,36,41,84,65,100,49,34,55,105,67, %U A352197 24,51,52,53,116,69,32,63,38,57,135,87,142,71,54,73,30,89,158,39,50,81,164,91,171,75,56,83,20,93,178,85,58,95,185,97,66,109 %N A352197 Where n appears in A350359, or -1 if n does not appear. %H A352197 Rémy Sigrist, <a href="/A352197/b352197.txt">Table of n, a(n) for n = 1..20000</a> (first 4326 terms from N. J. A. Sloane) %H A352197 Rémy Sigrist, <a href="/A352197/a352197.gp.txt">PARI program</a> %o A352197 (PARI) See Links section. %Y A352197 Cf. A350359, A352198. %K A352197 nonn %O A352197 1,2 %A A352197 _N. J. A. Sloane_, Mar 27 2022