id:A056596 - OEIS Search Results

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Number of nonsquare divisors of n!.

+0
1

0, 1, 3, 6, 14, 24, 54, 88, 148, 240, 510, 756, 1548, 2520, 3936, 5248, 10624, 14508, 29196, 40740, 60500, 95400, 191400, 242016, 338880, 529920, 674688, 912912, 1830192, 2327424, 4660224, 5523456, 7858176, 12152064, 16406592, 19576080 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`a(n)=d(n!)-A046951(n!)`
	CROSSREFS	`A000142, A000005, A046951, A055772.` `Sequence in context: A109757 A075189 A093866 this_sequence A026341 A026271 A166212` `Adjacent sequences: A056593 A056594 A056595 this_sequence A056597 A056598 A056599`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jul 21 2000`

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

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