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A088612
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a(1) = 1, a(n) = n-th squarefree number if n is not squarefree else a(n) is the n-th non-squarefree number.
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1
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1, 8, 9, 5, 16, 18, 20, 11, 13, 27, 28, 17, 36, 40, 44, 23, 48, 29, 50, 31, 54, 56, 60, 37, 38, 68, 41, 42, 76, 80, 81, 51, 88, 90, 92, 58, 98, 99, 100, 65, 108, 112, 116, 70, 71, 121, 124, 77, 78, 79, 132, 83, 136, 86, 144, 89, 148, 150, 152, 95, 156, 160, 102, 103, 168
(list; graph; refs; listen; history; internal format)
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