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 A044959 #8 Mar 31 2012 13:21:27 %S A044959 1,2,3,4,5,6,7,8,9,11,22,33,44,55,66,77,88,99,100,101,110,111,112,113, %T A044959 114,115,116,117,118,119,121,122,131,133,141,144,151,155,161,166,171, %U A044959 177,181,188,191,199,200,202,211,212,220,221 %N A044959 Numbers with no two equally numerous base 10 digits. %C A044959 The terms in the database for this sequence (a) also match two other descriptions: (b) numbers with a majority of one digit and (c) numbers with a plurality of one digit. These sequences diverge at 1002, which is in (c) but not (a) or (b); the first difference between (a) and (b) is 10002, in (b) but not (a). 100012 is the first number in (a) but not (b). (a) and (b) are both subsequences of (c). - _Franklin T. Adams-Watters_, Sep 05 2006 %K A044959 nonn,base %O A044959 1,2 %A A044959 _Clark Kimberling_