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Search: id:A118332
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| A118332 |
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Primes of the form n!! + (n+1)!!. |
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+0
2
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OFFSET
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1,1
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COMMENT
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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.
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CROSSREFS
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Cf. A118333.
Sequence in context: A117221 A073879 A073880 this_sequence A118333 A131101 A005384
Adjacent sequences: A118329 A118330 A118331 this_sequence A118333 A118334 A118335
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KEYWORD
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fini,full,nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Apr 23 2006
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