A043507 Numbers having three 4's in base 10.

444, 1444, 2444, 3444, 4044, 4144, 4244, 4344, 4404, 4414, 4424, 4434, 4440, 4441, 4442, 4443, 4445, 4446, 4447, 4448, 4449, 4454, 4464, 4474, 4484, 4494, 4544, 4644, 4744, 4844, 4944, 5444, 6444, 7444, 8444, 9444, 10444

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Links

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

Crossrefs

Subsequence of A011534.

Programs

Mathematica

Select[Range[11000],DigitCount[#,10,4]==3&] (* Harvey P. Dale, Aug 17 2020 *)