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A088612 a(1) = 1, a(n) = n-th squarefree number if n is not squarefree else a(n) is the n-th nonsquarefree number. 1
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; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..65.

EXAMPLE

a(9) = 13, the 9th squarefree number, A005117(9).

CROSSREFS

Cf. A005117, A013929, A088611.

Sequence in context: A245772 A190289 A198119 * A225426 A093626 A154208

Adjacent sequences:  A088609 A088610 A088611 * A088613 A088614 A088615

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Oct 16 2003

EXTENSIONS

Corrected and extended by Ray Chandler, Oct 18 2003

STATUS

approved

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Last modified February 17 17:27 EST 2018. Contains 299296 sequences. (Running on oeis4.)