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 A048459 #12 Jun 18 2021 06:54:38 %S A048459 2,3,4,5,7,19,25,27,53,59,68,148,176,241,347,441,444,509,844,990,1607, %T A048459 1823,2745,3244,3517,3695 %N A048459 Generation indices to 'Prime last odd terms' of sequence A048458. %Y A048459 For "Generations" see A048448-A048455. See also A047844. %K A048459 nonn,more %O A048459 1,1 %A A048459 _Patrick De Geest_, May 15 1999 %E A048459 a(9)-a(21) from _Nathaniel Johnston_, Apr 11 2011 %E A048459 a(22)-a(26) from _Sean A. Irvine_, Jun 18 2021