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A128029
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Numbers n such that (14^n - 3^n)/11 is prime.
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27
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OFFSET
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1,1
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COMMENTS
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All terms are primes.
No other terms < 100,000.
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LINKS
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MATHEMATICA
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k=11; Select[ Prime[ Range[1, 200] ], PrimeQ[ ((k+3)^# - 3^#)/k ]& ]
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PROG
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CROSSREFS
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KEYWORD
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hard,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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