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 A030795 #9 Feb 12 2021 20:08:40 %S A030795 5,7,14,18,33,42,52,82,97,118,158,184,187,190,213,219,224,244,247,277, %T A030795 313,316,318,319,351,391,435,440,448,483,488,493,534,537,540,587,644, %U A030795 703,711,766,770,773,780,833,842 %N A030795 Numbers k such that A030787(k) = 3. %Y A030795 Cf. A030787. %K A030795 nonn %O A030795 1,1 %A A030795 _Clark Kimberling_ %E A030795 Corrected by _Franklin T. Adams-Watters_, Oct 25 2006