A039086 Numbers whose base-9 representation has the same number of 1's and 4's.

0, 2, 3, 5, 6, 7, 8, 13, 18, 20, 21, 23, 24, 25, 26, 27, 29, 30, 32, 33, 34, 35, 37, 45, 47, 48, 50, 51, 52, 53, 54, 56, 57, 59, 60, 61, 62, 63, 65, 66, 68, 69, 70, 71, 72, 74, 75, 77, 78, 79, 80, 85, 103, 112, 117, 119, 120, 122, 123, 124, 125, 130, 139, 148, 157, 162

Offset

1,2

Links

Table of n, a(n) for n=1..66.

Mathematica

Select[Range[0, 200], DigitCount[#, 9, 1]==DigitCount[#, 9, 4]&] (* Harvey P. Dale, Dec 26 2014 *)

Crossrefs

Cf. A007095.

Sequence in context: A062877 A068526 A287339 * A280060 A197433 A153781

Adjacent sequences: A039083 A039084 A039085 * A039087 A039088 A039089

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved