id:A145642 - OEIS Search Results

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Cubefree part of n!.

+0
4

1, 2, 6, 3, 15, 90, 630, 630, 210, 2100, 23100, 34650, 450450, 6306300, 28028, 7007, 119119, 2144142, 40738698, 101846745, 230945, 5080790, 116858170, 350574510, 70114902, 1822987452, 1822987452, 6380456082, 185033226378, 5550996791340 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Weisstein, Eric W., Cubefree Part.`
	MATHEMATICA	`CubefreePart[n_Integer?Positive] := Times @@ Power @@@ ({#[[1]], Mod[ #[[2]], 3]} & /@ FactorInteger[n]); Table[CubefreePart[n! ], {n, 1, 40}]`
	CROSSREFS	`Sequence in context: A121566 A056839 A071301 this_sequence A056195 A083169 A050125` `Adjacent sequences: A145639 A145640 A145641 this_sequence A145643 A145644 A145645`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Oct 15 2008`

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

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