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A039221 Numbers n such that representation in base 12 has same number of 1's and 3's. 0
0, 2, 4, 5, 6, 7, 8, 9, 10, 11, 15, 24, 26, 28, 29, 30, 31, 32, 33, 34, 35, 37, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 74, 76, 77, 78, 79, 80, 81, 82, 83, 84, 86, 88, 89, 90, 91, 92, 93, 94, 95, 96, 98, 100, 101, 102, 103, 104 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

MATHEMATICA

Select[Range[0, 200], DigitCount[#, 12, 1]==DigitCount[#, 12, 3]&] (* Harvey P. Dale, Feb 25 2015 *)

CROSSREFS

Sequence in context: A235498 A052405 A039212 * A183297 A047573 A039246

Adjacent sequences:  A039218 A039219 A039220 * A039222 A039223 A039224

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified February 26 00:08 EST 2020. Contains 332270 sequences. (Running on oeis4.)