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 A188069 #12 Jun 25 2025 04:06:55 %S A188069 1,4,8,12,15,19,23,27,30,34,38,42,45,49,53,56,60,64,68,71,75,79,83,86, %T A188069 90,94,98,101,105,109,112,116,120,124,127,131,135,139,142,146,150,154, %U A188069 157,161,165,168,172,176,180,183,187,191,195,198,202,206,209,213,217,221,224,228,232,236,239,243,247,251,254,258,262,265,269,273,277,280,284,288 %N A188069 Positions of 0 in A188068; complement of A188070. %C A188069 See A188014, A188068. %C A188069 Also positions of 2 in A007538. - _Reinhard Zumkeller_, Feb 14 2012 %t A188069 (* See A188068. *) %o A188069 (Haskell) %o A188069 a188069 n = a188069_list !! (n-1) %o A188069 a188069_list = filter ((== 2) . a007538) [1..] %o A188069 -- _Reinhard Zumkeller_, Feb 14 2012 %Y A188069 Cf. A188014, A188068, A188070. %K A188069 nonn %O A188069 1,2 %A A188069 _Clark Kimberling_, Mar 20 2011