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 A263564 #6 Oct 27 2015 21:26:46 %S A263564 1,2,3,4,5,6,7,8,9,10,11,14,18,22,26,30,34,38,42,17,46,50,55,60,65,70, %T A263564 75,80,85,21,90,95,101,107,113,119,125,131,137,25,143,149,156,163,170, %U A263564 177,184,191,198,29,205,212,220,228,236,244,252,260,268,33,276 %N A263564 Putative inverse of A263563. %H A263564 Paul Tek, <a href="/A263564/b263564.txt">Table of n, a(n) for n = 1..1392</a> %H A263564 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A263564 Cf. A263563. %K A263564 nonn,base %O A263564 1,2 %A A263564 _Paul Tek_, Oct 21 2015