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 A246439 #6 Aug 28 2014 09:24:16 %S A246439 1,4,6,10,13,15,18,21,23,27,30,32,34,37,39,43,46,48,51,54,56,60,63,66, %T A246439 69,71,75,78,80,83,86,88,92,95,97,99,102,104,108,111,113,116,119,121, %U A246439 125,128,130,133,135,139,142,144,147,150,152,156,159,161,163 %N A246439 Numbers m such that A164349(m) = 1. %C A246439 A164349(a(n)) = 1. %H A246439 Reinhard Zumkeller, <a href="/A246439/b246439.txt">Table of n, a(n) for n = 1..10000</a> %o A246439 (Haskell) %o A246439 a246439 n = a246439_list !! (n-1) %o A246439 a246439_list = filter ((== 1) . a164349) [0..] %Y A246439 Cf. A246438 (complement), A101403 (first differences), A164349. %K A246439 nonn %O A246439 1,2 %A A246439 _Reinhard Zumkeller_, Aug 28 2014