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A219616
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Numbers n such that 5^n + n^4 is prime.
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0
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2, 4, 6, 8, 24, 28, 36, 54, 92, 154, 234, 442, 1138, 2408
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Select[Range[0, 10000, 2], PrimeQ[(5^# + #^4)] &]
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PROG
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(Magma) /* The code gives only the terms up to 442: */ [n: n in [0..1000 by 2] | IsPrime(5^n + n^4)];
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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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STATUS
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approved
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