A039092 Numbers whose base-9 representation has the same number of 2's and 4's.

0, 1, 3, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 22, 27, 28, 30, 32, 33, 34, 35, 38, 45, 46, 48, 50, 51, 52, 53, 54, 55, 57, 59, 60, 61, 62, 63, 64, 66, 68, 69, 70, 71, 72, 73, 75, 77, 78, 79, 80, 81, 82, 84, 86, 87, 88, 89, 90, 91, 93, 95, 96, 97, 98, 103, 108, 109, 111

Offset

1,3

Links

Table of n, a(n) for n=1..69.

Mathematica

Select[Range[125], DigitCount[#, 9, 2]==DigitCount[#, 9, 4]&]  (* Harvey P. Dale, Jan 23 2011 *)

Crossrefs

Cf. A007095.

Sequence in context: A048293 A039129 A194370 * A289178 A212450 A368828

Adjacent sequences: A039089 A039090 A039091 * A039093 A039094 A039095

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved