id:A064524 - OEIS Search Results

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Number of non-cubes <= n.

+0
3

0, 0, 1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 60, 61, 62, 63, 64, 65, 66, 67, 68 (list; graph; listen)

	OFFSET	`0,4`
	LINKS	`Harry J. Smith, Table of n, a(n) for n=0,...,1000`
	FORMULA	`a(n) = n - floor(CubicRoot(n))`
	PROGRAM	`(PARI) { for (n=0, 1000, write("b064524.txt", n, " ", n - floor(n^(1/3) + 0.00000000001)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 17 2009]`
	CROSSREFS	`A048766.` `Sequence in context: A145569 A071377 A076946 this_sequence A153249 A097621 A017851` `Adjacent sequences: A064521 A064522 A064523 this_sequence A064525 A064526 A064527`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 07 2001`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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