A043508 Numbers having four 4's in base 10.

4444, 14444, 24444, 34444, 40444, 41444, 42444, 43444, 44044, 44144, 44244, 44344, 44404, 44414, 44424, 44434, 44440, 44441, 44442, 44443, 44445, 44446, 44447, 44448, 44449, 44454, 44464, 44474, 44484, 44494, 44544

Offset

1,1

Links

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

Mathematica

Select[Range[50000], DigitCount[#, 10, 4]==4&] (* Vincenzo Librandi, Jul 01 2015 *)

Crossrefs

Subsequence of A011534.

Sequence in context: A206016 A091739 A166582 * A114908 A102622 A280485

Adjacent sequences: A043505 A043506 A043507 * A043509 A043510 A043511

Keyword

nonn,base

Author

Clark Kimberling

Status

approved