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A131958
Prime numbers of the form 1 + Product_{k=1..n} prime(k)^prime(n-k+1).
1
5, 73, 21601, 2097197194438629126172451944256706311040000000000001
OFFSET
1,1
COMMENTS
Any additional term is too large to include. A131959 gives corresponding n.
EXAMPLE
1 + (2^5)*(3^3)*(5^2) = 21601, a prime, is a term.
CROSSREFS
Cf. A131959.
Sequence in context: A012640 A353042 A128889 * A051156 A092826 A375220
KEYWORD
nonn
AUTHOR
Rick L. Shepherd, Aug 01 2007
STATUS
approved