A039251 - OEIS

A039251

Numbers whose base-12 representation has the same number of 4's and 9's.

0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, 57, 60, 61, 62, 63, 65, 66, 67, 68, 70, 71, 72, 73, 74, 75, 77, 78, 79, 80, 82, 83, 84, 85, 86, 87, 89, 90, 91, 92, 94

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Table of n, a(n) for n=1..70.

MATHEMATICA

Select[Range[0, 100], DigitCount[#, 12, 4]==DigitCount[#, 12, 9]&] (* Harvey P. Dale, Jun 06 2016 *)

CROSSREFS

Sequence in context: A166546 A167759 A028812 * A283296 A028797 A028773

Adjacent sequences: A039248 A039249 A039250 * A039252 A039253 A039254

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved