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 A167377 #5 Nov 03 2015 17:02:53 %S A167377 0,7,9,11,13,14,16,17,19,20,21,23,24,25,26,28,29,30,31,33,34,35,36,37, %T A167377 39,40,41,42,43,44,45,47,48,49,50,51,52,53,55,56,57,58,59,60,61,62,63, %U A167377 65,66,67,68,69,70,71,72,73,74,75,77,78,79,80,81,82,83,84,85,86,87,88 %N A167377 Complement of the range of A000009. %C A167377 A167393(a(n)) = 0. %H A167377 Reinhard Zumkeller, <a href="/A167377/b167377.txt">Table of n, a(n) for n = 1..10000</a> %o A167377 (Haskell) %o A167377 import Data.List.Ordered (minus) %o A167377 a167377 n = a167377_list !! n %o A167377 a167377_list = minus [0..] a000009_list %o A167377 -- _Reinhard Zumkeller_, Nov 03 2015 %Y A167377 Cf. A000009, A167376. %K A167377 nonn %O A167377 1,2 %A A167377 _Reinhard Zumkeller_, Nov 03 2009