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A163082
Primes of the form p$ - 1 where p is prime, where '$' denotes the swinging factorial (A056040).
1
5, 29, 139, 12011, 5651707681619, 386971244197199, 35257120210449712895193719, 815027488562171580969632861193966578650499
OFFSET
1,1
COMMENTS
The first values of p are 3, 5, 7, 13, 41 from A163080. Subsequence of A163076 (primes of the form k$ - 1).
LINKS
Peter Luschny, Swinging Primes.
EXAMPLE
3 and 3$ - 1 = 5 are prime, so 5 is a member.
MAPLE
a := proc(n) select(isprime, [$2..n]); select(isprime, map(x -> A056040(x)-1, %)) end:
CROSSREFS
KEYWORD
nonn
AUTHOR
Peter Luschny, Jul 21 2009
STATUS
approved