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A062702 Index of factorial primes of form m!-1. 1
3, 9, 128, 675, 25306287, 3610490805 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..5.

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 * A257032 A141143 A163402

Adjacent sequences:  A062699 A062700 A062701 * A062703 A062704 A062705

KEYWORD

hard,nonn

AUTHOR

Labos Elemer, Jul 11 2001

STATUS

approved

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Last modified December 8 22:51 EST 2016. Contains 278957 sequences.