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A039249 Numbers whose base-12 representation has the same number of 4's and 7's. 0
0, 1, 2, 3, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 29, 30, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 44, 45, 46, 47, 55, 60, 61, 62, 63, 65, 66, 68, 69, 70, 71, 72, 73, 74, 75, 77, 78, 80, 81, 82, 83, 88, 96, 97, 98, 99, 101, 102, 104 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

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

MATHEMATICA

Select[Range[0, 150], DigitCount[#, 12, 4]==DigitCount[#, 12, 7]&] (* Harvey P. Dale, Jul 22 2020 *)

CROSSREFS

Sequence in context: A075145 A086142 A258334 * A039191 A214329 A049386

Adjacent sequences:  A039246 A039247 A039248 * A039250 A039251 A039252

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified January 16 05:22 EST 2022. Contains 350374 sequences. (Running on oeis4.)