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 A023090 #22 Feb 12 2021 01:25:53 %S A023090 0,1386,13860,13986,14085,14859,15192,106848,120267,126702,126873, %T A023090 137286,138402,138600,138627,139860,139986,140085,140184,140850, %U A023090 140985,141858,142857,148509,148590,148599,149085,149859,150192,151893,151920,151992 %N A023090 Numbers k such that k and 6*k are anagrams. %C A023090 All terms are divisible by 9. - _Eric M. Schmidt_, Jul 12 2014 %H A023090 David W. Wilson, <a href="/A023090/b023090.txt">Table of n, a(n) for n = 1..10001</a> %t A023090 Select[Range[0,160000],Sort[IntegerDigits[#]]==Sort[IntegerDigits[ 6#]]&] (* _Harvey P. Dale_, Mar 18 2015 *) %Y A023090 Cf. A023086, A023087, A023088, A023089, A023091, A023092, A023093. %K A023090 nonn,base %O A023090 1,2 %A A023090 _David W. Wilson_