id:A071403 - OEIS Search Results

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Which square-free number is prime? a(n)-th square-free number equals n-th prime.

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2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 20, 24, 27, 29, 31, 33, 37, 38, 42, 45, 46, 50, 52, 56, 61, 62, 64, 67, 68, 71, 78, 81, 84, 86, 92, 93, 96, 100, 103, 105, 109, 110, 117, 118, 121, 122, 130, 139, 141, 142, 145, 149, 150, 154, 158, 162, 166, 167, 170, 172, 174, 180 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`A005117[a(n)]=A000040(n)=Prime[n]`
	EXAMPLE	`n=25, a(n)=61 because A005117[61]=p(25)=97`
	CROSSREFS	`Cf. A005117, A013929, A000040, A000290.` `Sequence in context: A155211 A010385 A095037 this_sequence A010407 A035240 A028929` `Adjacent sequences: A071400 A071401 A071402 this_sequence A071404 A071405 A071406`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), May 24 2002`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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