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A039077
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Numbers n such that representation in base 9 has same number of 0's and 1's.
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0
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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
(list; graph; refs; listen; history; internal format)
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