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 A037433 #15 Apr 23 2021 22:21:54 %S A037433 1,2,3,4,213,1003,1030,1420,1421,1422,1423,1424,2013,2130,2203,2243, %T A037433 2300,2301,2302,2303,2304,2311,2324,2413,2431,2443,3210,4021,4102, %U A037433 4112,4120,4121,4122,4123,4124,4331,4341,10003,10030,10031,10032 %N A037433 Positive numbers having the same set of digits in base 5 and base 10. %H A037433 John Cerkan, <a href="/A037433/b037433.txt">Table of n, a(n) for n = 1..10000</a> %e A037433 1422 is in the sequence because 1422 in base 5 is 21142. %t A037433 Select[Range[11000],Union[IntegerDigits[#]]==Union[IntegerDigits[#,5]]&] (* _Harvey P. Dale_, Aug 16 2014 *) %Y A037433 Subsequence of A037397. %K A037433 nonn,base %O A037433 1,2 %A A037433 _Clark Kimberling_ %E A037433 More terms from _Don Reble_, Apr 28 2006 %E A037433 Edited by _John Cerkan_, Feb 13 2017