A062702 - OEIS

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A062702

Index of factorial primes of form m!-1.

3, 9, 128, 675, 25306287, 3610490805 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	FORMULA	`a(n)=PrimePi[A002982(n)!-1]=A000720[A055490(n)]`
	EXAMPLE	`exact subscript of 7th prime [=30!-1=265252859812191058636308479999999] not yet available`
	CROSSREFS	`A002981, A002982, A055490.` `Sequence in context: A177793 A018778 A082606 * A141143 A163402 A082707` `Adjacent sequences: A062699 A062700 A062701 * A062703 A062704 A062705`
	KEYWORD	`hard,nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jul 11 2001`

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Last modified February 15 15:20 EST 2012. Contains 205823 sequences.