id:A055993 - OEIS Search Results

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Number of square divisors of n!.

+0
3

1, 1, 1, 2, 2, 6, 6, 8, 12, 30, 30, 36, 36, 72, 96, 128, 128, 180, 180, 300, 300, 600, 600, 864, 1152, 2304, 2688, 4368, 4368, 5376, 5376, 6144, 6144, 13056, 16320, 19440, 19440, 38880, 43200, 48000, 48000, 64000, 64000, 100800, 133056, 278784, 278784 (list; graph; listen)

	OFFSET	`1,4`
	FORMULA	`a(n)=A046951(n!)=A000005[A055772(n)]= A000005[A000188[A000142(n)]]`
	CROSSREFS	`A000142, A000005, A046951, A055772, A000188.` `Adjacent sequences: A055990 A055991 A055992 this_sequence A055994 A055995 A055996` `Sequence in context: A048594 A130493 A010762 this_sequence A039722 A082542 A032302`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jul 21 2000`

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.

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