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 A320062 #15 Jul 08 2025 07:51:30 %S A320062 1,9,15,33,35,39,51,55,57,75,77,91,93,95,99,111,115,117,119,133,135, %T A320062 153,155,159,171,175,177,195,315,319,333,335,339,351,355,357,371,375, %U A320062 377,391,393,395,399,511,513,515,517,519,531,533,535,537,539,551,553,555 %N A320062 Nonprimes with odd digits only. %H A320062 Mia Boudreau, <a href="/A320062/b320062.txt">Table of n, a(n) for n = 1..10000</a> %o A320062 (PARI) isok(n) = !isprime(n) && (d=digits(n)) && (#select(x->x%2, d) == #d); \\ _Michel Marcus_, Oct 05 2018 %Y A320062 Intersection of A018252 and A014261. %Y A320062 Supersequence of A062016. %K A320062 nonn,base %O A320062 1,2 %A A320062 _Enrique Navarrete_, Oct 04 2018