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A039039
Numbers whose base-7 representation has the same number of 1's and 6's.
1
0, 2, 3, 4, 5, 13, 14, 16, 17, 18, 19, 21, 23, 24, 25, 26, 28, 30, 31, 32, 33, 35, 37, 38, 39, 40, 43, 55, 69, 76, 83, 90, 91, 93, 94, 95, 96, 98, 100, 101, 102, 103, 111, 112, 114, 115, 116, 117, 119, 121, 122, 123, 124, 126, 128, 129, 130, 131, 133, 135, 136
OFFSET
1,2
LINKS
MATHEMATICA
Select[Range[0, 150], DigitCount[#, 7, 1]==DigitCount[#, 7, 6]&] (* Harvey P. Dale, Jan 15 2012 *)
CROSSREFS
Cf. A007093.
Sequence in context: A369739 A101546 A026471 * A141484 A175303 A057158
KEYWORD
nonn,base,easy
STATUS
approved