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A096818
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Numbers k such that 2^k - 13 is prime.
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19
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4, 5, 9, 13, 17, 57, 105, 137, 3217, 3229, 4233, 6097, 8757, 11457, 12073, 15425, 40117, 45357, 334809, 1509037
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OFFSET
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1,1
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COMMENTS
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Except the first term 4, all terms are odd since for even k, 2^k - 13 is divisible by 3.
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LINKS
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EXAMPLE
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k = 5: 32 - 13 = 19 is prime.
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MATHEMATICA
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CROSSREFS
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Cf. Sequences of numbers k such that 2^k - d is prime: A000043 (d=1), A050414 (d=3), A059608 (d=5), A059609 (d=7), A059610 (d=9), A096817 (d=11), this sequence (d=13), A059612 (d=15), A059611 (d=17), A096819 (d=19), A096820 (d=21), A057220 (d=23), A356826 (d=29).
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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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