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A118332
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Primes of the form n!! + (n+1)!!.
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1
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OFFSET
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1,1
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COMMENTS
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These are all primes of the form n!! + (n+1)!! Corresponding values of n are 0, 1, 2, 3, 4. At n>4, n!! + (n+1)!! is always composite, cf. A118333.
Apparently also the set of primes p(n) such that p(n)^2 - 2^n is prime. - Irina Gerasimova, May 09 2013
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LINKS
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CROSSREFS
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KEYWORD
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fini,full,nonn
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AUTHOR
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STATUS
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approved
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