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A152208
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Lexicographically smallest sequence of distinct nonnegative integers such that a(n) shares no digit with the a(a(n)) for all n>=0.
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1
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1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 20, 13, 22, 15, 23, 17, 24, 19, 25, 31, 26, 30, 40, 33, 34, 35, 28, 36, 32, 41, 42, 44, 45, 50, 46, 47, 38, 49, 43, 51, 52, 53, 55, 56, 60, 57, 58, 54, 61, 62, 63, 64, 66, 67, 68, 70, 69, 71, 65, 72, 73, 74, 75
(list; graph; refs; listen; history; internal format)
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