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 A044960 #7 Dec 18 2012 14:59:11
%S A044960 1,2,3,4,5,6,7,8,9,10,12,24,36,48,60,72,84,96,108,120,121,122,132,133,
%T A044960 134,135,136,137,138,139,140,141,142,144,145,155,157,166,169,177,181,
%U A044960 188,193,199,205,210,217,221,229,232,241,242
%N A044960 Numbers with no two equally numerous base 11 digits.
%t A044960 ntenQ[n_]:=Module[{d=Select[DigitCount[n,11],#>0&]},Length[d] == Length[ Union[d]]]; Select[Range[250],ntenQ] (* _Harvey P. Dale_, Dec 18 2012 *)
%K A044960 nonn,base
%O A044960 1,2
%A A044960 _Clark Kimberling_