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A052290
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Prime values of n!*2^n+n+1 = A000165(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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For a(6), n = 36. There are no additional terms up to n=1000. - Harvey P. Dale, Aug 06 2012
Primes for n = 0, 2, 4, 12, 18, 36, and no others for n < 5001. - Robert G. Wilson v, Aug 07 2012
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LINKS
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EXAMPLE
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If n=4, 2^4*4!+4+1 = 389 is prime, so 389 is a term.
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MATHEMATICA
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Select[Table[n! 2^n+n+1, {n, 0, 1000}], PrimeQ] (* Harvey P. Dale, Aug 06 2012 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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