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A039080
Numbers whose base-9 representation has the same number of 0's and 4's.
0
1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 17, 19, 20, 21, 23, 24, 25, 26, 28, 29, 30, 32, 33, 34, 35, 36, 46, 47, 48, 50, 51, 52, 53, 55, 56, 57, 59, 60, 61, 62, 64, 65, 66, 68, 69, 70, 71, 73, 74, 75, 77, 78, 79, 80, 85, 91, 92, 93, 95, 96, 97, 98, 100, 101, 102, 104
OFFSET
1,2
MATHEMATICA
Select[Range[150], DigitCount[#, 9, 0]==DigitCount[#, 9, 4]&] (* Harvey P. Dale, Sep 05 2013 *)
CROSSREFS
Cf. A007095.
Sequence in context: A093480 A121518 A287770 * A093435 A048964 A028749
KEYWORD
nonn,base,easy
STATUS
approved