OFFSET
1,1
COMMENTS
The corresponding primes are a subset of the generalized Woodall primes (A210340).
EXAMPLE
14 is a member because 14*15^14 - 1 = 408700964355468749 is a prime number.
MATHEMATICA
Select[Range[10^3], PrimeQ[# (# + 1)^# - 1] &] (* Michael De Vlieger, Apr 12 2016 *)
PROG
(PARI) for(n=1, 10^10, ispseudoprime(n*(n+1)^n-1)&&print1(n, ", "))
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Jeppe Stig Nielsen, Apr 12 2016
STATUS
approved