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A057471
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Numbers k such that (11*13^k -1)/2 is prime.
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0
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0, 1, 2, 5, 9, 11, 21, 42, 46, 61, 69, 70, 78, 99, 183, 361, 1034, 1291, 1570, 1838, 5994
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OFFSET
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1,3
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COMMENTS
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LINKS
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MATHEMATICA
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Do[ If[ PrimeQ[(11*13^n - 1)/2], Print[n]], {n, 0, 2700}]
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PROG
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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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