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 A037438 #15 Apr 23 2021 22:23:59 %S A037438 1,2,3,4,5,6,94,133,220,227,305,385,597,620,629,1043,1059,1195,1441, %T A037438 1540,1571,1893,1904,1905,1906,1907,1908,1909,1910,2086,2278,3080, %U A037438 3170,4165,4200,4365,4389,4464,4483,4504,4512,4880,5156,5202,5211 %N A037438 Positive numbers having the same set of digits in base 7 and base 8. %H A037438 John Cerkan, <a href="/A037438/b037438.txt">Table of n, a(n) for n = 1..10000</a> %e A037438 227 is in the sequence because 227 in base 7 is 443 and in base 8 it is 343. %t A037438 Select[Range[6000],Union[IntegerDigits[#,7]]==Union[IntegerDigits[#,8]]&] (* _Harvey P. Dale_, Jul 22 2015 *) %Y A037438 Subsequence of A037402. %K A037438 nonn,base %O A037438 1,2 %A A037438 _Clark Kimberling_ %E A037438 More terms from _Don Reble_, Apr 28 2006 %E A037438 Edited by _John Cerkan_, Feb 17 2017