id:A097043 - OEIS Search Results

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a(n) = n - a(floor(sqrt(n))) for n > 1; a(1) = 1.

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	OFFSET	`1,3`
	FORMULA	`a(1)=1; a(n) = n - a(floor(sqrt(n))) for n > 1.` `a(n)=n-sqrt(n)+O(n^(1/4)) [From Benoit Cloitre (benoit7848c(AT)orange.fr), Jul 23 2009]`
	PROGRAM	`(PARI) a(n)=if(n<2, 1, n-a(sqrtint(n)) [From Benoit Cloitre (benoit7848c(AT)orange.fr), Jul 23 2009]`
	CROSSREFS	`Cf. A097044 ( n + a(floor(sqrt(n))) ).` `Sequence in context: A101041 A093697 A157466 this_sequence A053759 A060431 A124808` `Adjacent sequences: A097040 A097041 A097042 this_sequence A097044 A097045 A097046`
	KEYWORD	`nonn`
	AUTHOR	`Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jul 20 2004`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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