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A059749
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Numbers k such that 5*2^k - 7 is prime.
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1
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1, 2, 4, 6, 10, 16, 30, 32, 52, 68, 78, 84, 118, 136, 154, 406, 488, 696, 752, 880, 2754, 3922, 3976, 4888, 5866, 51084, 55744, 61000
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OFFSET
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1,2
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COMMENTS
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LINKS
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MATHEMATICA
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Do[ If[ PrimeQ[ 5*2^n - 7 ], Print[n] ], {n, 3000} ]
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PROG
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(PFGW) ABC2 5*2^$a-7
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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