A050985 - OEIS

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A050985

Cubefree part of n.

1, 2, 3, 4, 5, 6, 7, 1, 9, 10, 11, 12, 13, 14, 15, 2, 17, 18, 19, 20, 21, 22, 23, 3, 25, 26, 1, 28, 29, 30, 31, 4, 33, 34, 35, 36, 37, 38, 39, 5, 41, 42, 43, 44, 45, 46, 47, 6, 49, 50, 51, 52, 53, 2, 55, 7, 57, 58, 59, 60, 61, 62, 63, 1, 65, 66, 67, 68, 69, 70, 71, 9, 73, 74, 75 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`H. Bottomley, Some Smarandache-type multiplicative sequences` `Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	FORMULA	`Multiplicative with p^e -> p^(e mod 3), p prime. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 22 2009]` `Dirichlet g.f. zeta(3s)*zeta(s-1)/zeta(3s-3). - R. J. Mathar, Feb 11 2011`
	CROSSREFS	`Cf. A007913, A008834, A053165.` `Sequence in context: A033928 A194754 A167972 * A056192 A030107 A037895` `Adjacent sequences: A050982 A050983 A050984 * A050986 A050987 A050988`
	KEYWORD	`nonn,easy,mult`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`

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Last modified February 16 02:51 EST 2012. Contains 205860 sequences.