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Numbers having three 3's in base 10.
3

%I #16 Apr 24 2021 21:29:50

%S 333,1333,2333,3033,3133,3233,3303,3313,3323,3330,3331,3332,3334,3335,

%T 3336,3337,3338,3339,3343,3353,3363,3373,3383,3393,3433,3533,3633,

%U 3733,3833,3933,4333,5333,6333,7333,8333,9333,10333

%N Numbers having three 3's in base 10.

%H Daniel Starodubtsev, <a href="/A043503/b043503.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[Range[11000],DigitCount[#,10,3]==3&] (* _Harvey P. Dale_, Apr 13 2015 *)

%Y Subsequence of A011533.

%K nonn,base

%O 1,1

%A _Clark Kimberling_