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 A037442 #18 Apr 24 2021 02:03:55 %S A037442 1,2,3,4,5,6,7,614,1124,1233,1273,1653,2154,2466,3160,3161,3162,3163, %T A037442 3164,3165,3166,3167,3226,4100,4711,5117,5213,5421,6414,6541,7105, %U A037442 7125,7135,7151,7671,10241,11257,11625,11662,11726,13000,13271,13320 %N A037442 Positive numbers having the same set of digits in base 8 and base 10. %H A037442 John Cerkan, <a href="/A037442/b037442.txt">Table of n, a(n) for n = 1..10000</a> %e A037442 1233 is in the sequence because 1233 in base 8 is 2321. %t A037442 Select[Range@ 13400, Union@ IntegerDigits[#, 8] == Union@ IntegerDigits@ # &] (* _Michael De Vlieger_, Feb 18 2017 *) %o A037442 (PARI) isok(n) = Set(digits(n, 8)) == Set(digits(n)); \\ _Michel Marcus_, Feb 18 2017 %Y A037442 Subsequence of A037406. %Y A037442 Cf. A007094 %K A037442 nonn,base %O A037442 1,2 %A A037442 _Clark Kimberling_ %E A037442 More terms from _Don Reble_, Apr 28 2006 %E A037442 Edited by _John Cerkan_, Feb 17 2017