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A118841
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Numbers n such that ceiling(phi^n) is prime.
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1
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1, 2, 3, 4, 8, 16, 51169, 56003, 81671, 89849, 94823
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| Eric Weisstein's World of Mathematics, Phi-Prime
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PROG
| (PARI) phi=(1+sqrt(5))/2; for(n=1, 1e4, if(ispseudoprime(ceil(phi^n)), print1(n", "))) \\ Charles R Greathouse IV, Jul 29 2011
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CROSSREFS
| Cf. A118842, A001606.
Sequence in context: A126294 A162724 A140974 * A102276 A105055 A108506
Adjacent sequences: A118838 A118839 A118840 * A118842 A118843 A118844
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KEYWORD
| nonn
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com), May 01, 2006
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EXTENSIONS
| a(7)-a(8) from Charles R Greathouse IV, Jul 30 2011
a(9)-a(11) from Charles R Greathouse IV, Aug 01 2011
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