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A039077
Numbers whose base-9 representation has the same number of 0's and 1's.
0
2, 3, 4, 5, 6, 7, 8, 9, 20, 21, 22, 23, 24, 25, 26, 29, 30, 31, 32, 33, 34, 35, 38, 39, 40, 41, 42, 43, 44, 47, 48, 49, 50, 51, 52, 53, 56, 57, 58, 59, 60, 61, 62, 65, 66, 67, 68, 69, 70, 71, 74, 75, 76, 77, 78, 79, 80, 83, 84, 85, 86, 87, 88, 89, 99, 108, 117, 126, 135
OFFSET
1,1
MATHEMATICA
Select[Range[150], DigitCount[#, 9, 0]==DigitCount[#, 9, 1]&] (* Harvey P. Dale, Dec 23 2011 *)
CROSSREFS
Cf. A007095.
Sequence in context: A118761 A024657 A140281 * A247803 A362093 A052383
KEYWORD
nonn,base,easy
STATUS
approved