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A057917
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Numbers k such that 3*5^k - 2 is prime.
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1
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1, 2, 3, 4, 31, 34, 82, 116, 120, 398, 450, 566, 1216, 1478, 1776, 2379, 2816, 3492, 3644, 7348, 8374, 8406, 9931, 13311, 15358, 16120, 40030, 42230, 43686, 48787, 51696
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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[ 3*5^n - 2 ], Print[ n ] ], {n, 1, 1500} ]
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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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