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 A037411 #14 Apr 23 2021 22:15:31 %S A037411 1,6,7,36,37,42,216,217,222,223,252,253,258,1296,1297,1302,1303,1332, %T A037411 1333,1338,1339,1512,1513,1518,1519,1548,1549,1554,7776,7777,7782, %U A037411 7783,7812,7813,7818,7819,7992,7993,7998,7999,8028 %N A037411 Positive numbers having the same set of digits in base 2 and base 6. %H A037411 John Cerkan, <a href="/A037411/b037411.txt">Table of n, a(n) for n = 1..10000</a> %o A037411 (PARI) isok(n) = Set(digits(n, 2)) == Set(digits(n, 6)); \\ _John Cerkan_, Jan 11 2017 %Y A037411 Subsequence of A033043. %K A037411 nonn,base %O A037411 1,2 %A A037411 _Clark Kimberling_