A044961 - OEIS

%I #7 Aug 13 2012 11:01:36

%S 1,2,3,4,5,6,7,8,9,10,11,13,26,39,52,65,78,91,104,117,130,143,144,145,

%T 156,157,158,159,160,161,162,163,164,165,166,167,169,170,181,183,193,

%U 196,205,209,217,222,229,235,241,248,253,261

%N Numbers with no two equally numerous base 12 digits.

%H Harvey P. Dale, <a href="/A044961/b044961.txt">Table of n, a(n) for n = 1..1000</a>

%t nb12Q[n_]:=Module[{c=Select[DigitCount[n,12],#>0&]},Length[c] == Length[ Union[c]]]; Select[Range[300],nb12Q] (* _Harvey P. Dale_, Aug 13 2012 *)

%K nonn,base

%O 1,2

%A _Clark Kimberling_