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 A191819 #15 Feb 13 2013 20:32:03 %S A191819 137174,137175,137184,137186,137195,137196,137274,137275,137294, %T A191819 137297,137305,137307,137384,137386,137394,137397,137416,137417, %U A191819 137495,137496,137505,137507,137516,137517,138174,138175,138184,138186,138195,138196,138374,138375,138404 %N A191819 (A178477(n)-1)/9. %C A191819 The sequence is motivated by the fact that numbers whose decimal expansion is a permutation of 1234567 are all of the form 9k+1. %H A191819 Nathaniel Johnston, <a href="/A191819/b191819.txt">Table of n, a(n) for n = 1..5040</a> (full sequence) %Y A191819 Cf. A178485, A178486, A191820. %K A191819 nonn,fini,full,easy,base %O A191819 1,1 %A A191819 _Nathaniel Johnston_, Jun 24 2011