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 A358749 #4 Dec 07 2022 14:59:57 %S A358749 2,10,14,42,46,54,62,70,78,82,86,94,110,114,118,134,150,154,162,166, %T A358749 190,202,206,214,218,230,242,246,250,254,266,282,294,302,306,310,318, %U A358749 326,334,342,354,358,366,390,402,414,418,422,430,434,438,446,450,454,458,462,470,474,478,490,506,510,518 %N A358749 Numbers k such that A358669(k) == 3 (mod 4). %H A358749 <a href="/index/Pri#primorialbase">Index entries for sequences related to primorial base</a> %o A358749 (PARI) isA358749(n) = A358759(n); %Y A358749 Setwise difference A016825 \ A358748. %Y A358749 Cf. A003415, A152822, A276086, A358759 (characteristic function), A358669. %K A358749 nonn %O A358749 1,1 %A A358749 _Antti Karttunen_, Dec 06 2022