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 A285687 #19 Oct 29 2023 17:58:07 %S A285687 10,12,13,14,15,16,17,18,19,1,21,2,3,4,5,6,7,8,9,22,11,20,30,32,42,52, %T A285687 62,72,82,23,33,24,31,40,43,53,63,73,83,34,44,25,35,41,50,54,64,74,84, %U A285687 45,55,26,36,46,51,60,65,75,85,56,66,27,37,47,57,61,70 %N A285687 Lexicographically earliest sequence of distinct positive terms such that, for any n>0, n and a(n) differ and overlap in base 10 (in the sense of A262323). %C A285687 The definition of the overlapping of two numbers is that of the sequence A262323. %C A285687 This sequence is a self-inverse permutation of the natural numbers. %H A285687 Rémy Sigrist, <a href="/A285687/b285687.txt">Table of n, a(n) for n = 1..10000</a> %H A285687 Rémy Sigrist, <a href="/A285687/a285687.pl.txt">PERL program for A285687</a> %H A285687 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A285687 The first terms are: %e A285687 n: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,... %e A285687 a(n): 10, 12, 13, 14, 15, 16, 17, 18, 19, 1, 21, 2, 3, 4, 5,... %Y A285687 Cf. A262323. %K A285687 nonn,base,look %O A285687 1,1 %A A285687 _Rémy Sigrist_, May 03 2017 %E A285687 Expanded definition. - _N. J. A. Sloane_, Oct 29 2023