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A181745 Prime numbers that are factorial differences p! -q! where p+1 and q+1 are both prime numbers. 0
23, 719, 479001599, 265252859812191058636308479999999 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..4.

EXAMPLE

a(3)=479001599 because 479001599 is prime and equals 479001600-1 = A000142(12) - A000142(1) where 13 and 2 are prime numbers.

CROSSREFS

Cf. A000142, A055490.

Sequence in context: A127230 A013361 A013363 * A159306 A236302 A179793

Adjacent sequences:  A181742 A181743 A181744 * A181746 A181747 A181748

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Nov 08 2010

EXTENSIONS

Corrected a(3) (was missing its last digit), Christian N. K. Anderson, Mar 22 2013

STATUS

approved

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Last modified August 30 20:23 EDT 2014. Contains 246229 sequences.