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A088611
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a(1) =1, a(n) = n-th squarefree number if n is squarefree else a(n) is the n-th nonsquarefree number.
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1
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1, 2, 3, 12, 6, 7, 10, 24, 25, 14, 15, 32, 19, 21, 22, 45, 26, 49, 30, 52, 33, 34, 35, 63, 64, 39, 72, 75, 43, 46, 47, 84, 53, 55, 57, 96, 59, 61, 62, 104, 66, 67, 69, 117, 120, 73, 74, 125, 126, 128, 82, 135, 85, 140, 87, 147, 91, 93, 94, 153, 97, 101, 162, 164, 105, 106
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| a(4) = 12, the 4-th nonsquarefree number.
The 4-th term in the sequence 4,8,9,12,16,18,20,...
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CROSSREFS
| Cf. A088612.
Sequence in context: A038610 A056819 A124442 * A137765 A104038 A112979
Adjacent sequences: A088608 A088609 A088610 * A088612 A088613 A088614
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Oct 16 2003
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EXTENSIONS
| Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 18 2003
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