A043503 Numbers having three 3's in base 10.

333, 1333, 2333, 3033, 3133, 3233, 3303, 3313, 3323, 3330, 3331, 3332, 3334, 3335, 3336, 3337, 3338, 3339, 3343, 3353, 3363, 3373, 3383, 3393, 3433, 3533, 3633, 3733, 3833, 3933, 4333, 5333, 6333, 7333, 8333, 9333, 10333

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Links

• Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

Crossrefs

Subsequence of A011533.

Programs

Mathematica

Select[Range[11000],DigitCount[#,10,3]==3&] (* Harvey P. Dale, Apr 13 2015 *)