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 A023078 #17 Aug 07 2025 07:35:20
%S A023078 1067,10067,10337,10670,10677,10767,100067,100337,100670,100677,
%T A023078 100767,103370,103377,105573,105672,106700,106770,106777,107670,
%U A023078 107677,107767,1000067,1000337,1000670,1000677,1000767,1003370,1003377,1005573,1005672
%N A023078 Positive numbers k such that k and 7*k are anagrams in base 8 (written in base 8).
%H A023078 Amiram Eldar, <a href="/A023078/b023078.txt">Table of n, a(n) for n = 1..10000</a>
%t A023078 FromDigits[IntegerDigits[#, 8]] & /@ Select[Range[100000], SameQ @@ Sort /@ IntegerDigits[{#, 7*#}, 8] &] (* _Amiram Eldar_, Aug 07 2025 *)
%Y A023078 Cf. A007094.
%K A023078 nonn,base
%O A023078 1,1
%A A023078 _David W. Wilson_