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Search: id:A063897
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| A063897 |
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Smallest n such that n - F_j are all primes, where F_j is the j-th Fermat number. |
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+0
2
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| 5, 8, 22, 274, 65704, 4295145556, 18446744073810262144
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Is this sequence finite?
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EXAMPLE
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For j=3 a(3)=274 because 274-257, 274-17, 274-5, 274-3 are all primes.
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CROSSREFS
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Sequence in context: A120041 A120042 A120043 this_sequence A092733 A116884 A105963
Adjacent sequences: A063894 A063895 A063896 this_sequence A063898 A063899 A063900
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KEYWORD
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more,nonn
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AUTHOR
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Felice Russo (felice.russo(AT)katamail.com), Aug 29 2001
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EXTENSIONS
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18446744073810262144 from Thomas Baruchel (baruchel(AT)users.sourceforge.net), Oct 21 2003
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