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A079481 Primes of the form p(n)*p(n+1)+[p(n)-1]!. 0
3, 5, 7, 13, 17, 71 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Let p(n) be 5, therefore p(n+1)=7 and p(n)*p(n+1)=35. [p(n)-1)]!=4!=24. 35+24=59, which is prime.

PROG

(PARI) forprime (p=3, 1000, if (isprime(p*nextprime(p+1)+(p-1)!), print1(p", ")))

CROSSREFS

Sequence in context: A106878 A192294 A227531 * A291867 A219674 A075571

Adjacent sequences:  A079478 A079479 A079480 * A079482 A079483 A079484

KEYWORD

nonn

AUTHOR

Jon Perry, Jan 16 2003

STATUS

approved

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Last modified February 20 20:55 EST 2019. Contains 320345 sequences. (Running on oeis4.)