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A160773
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Numbers n such that 3^n + 5^n + 7^n is prime.
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2
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0, 2, 10, 14, 24, 26, 126, 514, 522, 1658, 13758, 77194
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Note that n must be even.
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REFERENCES
| Joao Carlos Leandro da Silva, The Rainbow of Primes, Freund Publishing House, Tel Aviv, 2009.
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EXAMPLE
| For n=2 we obtain f(2)= 3^2 + 5^2 + 7^2 = 83 which is a prime.
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CROSSREFS
| Sequence in context: A032384 A032624 A091999 * A190043 A102340 A047043
Adjacent sequences: A160770 A160771 A160772 * A160774 A160775 A160776
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KEYWORD
| nice,nonn
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AUTHOR
| Joao Carlos Leandro da Silva (zxawyh66(AT)yahoo.com), May 26 2009, Jun 01 2009
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EXTENSIONS
| Zero added by Zak Seidov, Oct 10 2009
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