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A104068
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Primes of the form 2^k + 19.
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2
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23, 83, 1073741843, 5846006549323611672814739330865132078623730171923, 74751027079122046462216955587793573067050655862760405902609490213261724339546970300512875500623813013973275600053770769378323738155015176163371603062328757260320680744718580942157810765768356266003
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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a = Delete[Union[Flatten[Table[If [PrimeQ[2^n + 19] == True, 2^n + 19, 0], {n, 1, 400}]]], 1]
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PROG
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(Magma) [ a: n in [0..750] | IsPrime(a) where a is 2^n+19 ] // Vincenzo Librandi, Nov 13 2010
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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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