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Search: id:A058959
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| A058959 |
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Numbers n such that 3^n - 4 is prime. |
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+0
1
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| 2, 3, 5, 21, 31, 37, 41, 53, 73, 101, 175, 203, 225, 455, 557, 651, 1333, 4823
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OFFSET
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1,1
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COMMENT
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Next term after 4823 is greater than 10000. - Ryan Propper (rpropper(AT)stanford.edu), Jun 30 2005
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MATHEMATICA
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Do[ If[ PrimeQ[3^n - 4], Print[n] ], {n, 1, 3000} ]
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CROSSREFS
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Adjacent sequences: A058956 A058957 A058958 this_sequence A058960 A058961 A058962
Sequence in context: A127078 A076383 A024766 this_sequence A065398 A084838 A051694
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KEYWORD
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nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 13 2001
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EXTENSIONS
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One additional term, corresponding to a certified prime, from Ryan Propper (rpropper(AT)stanford.edu), Jun 30 2005
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