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 A094399 #8 Aug 29 2021 11:59:55 %S A094399 1,15,323,4879,5655,6479,7055,9879,10815,11663,12935,18407,19043, %T A094399 23407,31535,34943,35207,39203,44099,47519,51983,53663,61541,65471, %U A094399 78089,79547,82983,86063,94667,104663,109871,117215,121103,133055,139359 %N A094399 Odd numbers k that divide Lucas(k) + 1. %o A094399 (PARI) isok(n) = (n % 2) && (((fibonacci(n+1) + fibonacci(n-1) + 1) % n) == 0); \\ _Michel Marcus_, Aug 27 2013 %Y A094399 Cf. A094398. %K A094399 nonn %O A094399 1,2 %A A094399 _Eric Rowland_, May 01 2004