A043511 Numbers having three 5's in base 10.

555, 1555, 2555, 3555, 4555, 5055, 5155, 5255, 5355, 5455, 5505, 5515, 5525, 5535, 5545, 5550, 5551, 5552, 5553, 5554, 5556, 5557, 5558, 5559, 5565, 5575, 5585, 5595, 5655, 5755, 5855, 5955, 6555, 7555, 8555, 9555, 10555

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Links

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

Crossrefs

Subsequence of A011535.

Programs

Mathematica

Select[Range[555,11000],DigitCount[#,10,5]==3&] (* Harvey P. Dale, May 31 2021 *)