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 A007928 #23 Sep 08 2022 08:44:35 %S A007928 0,2,4,6,8,10,12,14,16,18,20,21,22,23,24,25,26,27,28,29,30,32,34,36, %T A007928 38,40,41,42,43,44,45,46,47,48,49,50,52,54,56,58,60,61,62,63,64,65,66, %U A007928 67,68,69,70,72,74,76,78,80,81,82,83,84,85,86,87,88,89,90,92,94,96,98,100 %N A007928 Numbers containing an even digit. %C A007928 Or, numbers whose product of digits is even. %C A007928 Complement of A014261; A196563(a(n)) > 0. - _Reinhard Zumkeller_, Oct 04 2011 %H A007928 Reinhard Zumkeller, <a href="/A007928/b007928.txt">Table of n, a(n) for n = 1..10000</a> %H A007928 F. Smarandache, <a href="http://www.gallup.unm.edu/~smarandache/OPNS.pdf">Only Problems, Not Solutions!</a>, Xiquan Publ., Phoenix-Chicago, 1993. %H A007928 <a href="/index/Ar#10-automatic">Index entries for 10-automatic sequences</a>. %F A007928 a(n) ~ n. - _Charles R Greathouse IV_, Sep 07 2012 %o A007928 (Magma) [ n : n in [0..129] | IsEven(&*Intseq(n,10)) ]; %o A007928 (Haskell) %o A007928 import Data.List (findIndices) %o A007928 a007928 n = a007928_list !! (n-1) %o A007928 a007928_list = findIndices (> 0) a196563_list %o A007928 -- _Reinhard Zumkeller_, Oct 04 2011 %o A007928 (PARI) is(n)=vecmin(Set(digits(n)%2))==0 \\ _Charles R Greathouse IV_, Feb 14 2017 %K A007928 nonn,base,easy %O A007928 1,2 %A A007928 R. Muller