id:A055230 - OEIS Search Results

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Greatest common divisor of largest square dividing n! and square-free part of n!.

+0
9

1, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 3, 3, 6, 10, 10, 10, 5, 5, 1, 21, 42, 42, 7, 7, 14, 42, 6, 6, 5, 5, 10, 330, 165, 231, 231, 231, 462, 2002, 5005, 5005, 4290, 4290, 390, 78, 39, 39, 13, 13, 26, 1326, 102, 102, 17, 935, 13090, 746130, 373065, 373065, 24871, 24871 (list; graph; listen)

	OFFSET	`1,4`
	FORMULA	`a(n) = GCD[A008833(n!), A007913(n!)] = GCD[A008833(A000720(n)), A007913(A000720(n))]`
	CROSSREFS	`A008833, A007913, A000188, A000720.` `Sequence in context: A014695 A071017 A112049 this_sequence A112050 A078401 A086247` `Adjacent sequences: A055227 A055228 A055229 this_sequence A055231 A055232 A055233`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jun 21 2000`

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

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