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A074281
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Primes of the form Lucas(2*n)/3.
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3
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OFFSET
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1,1
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COMMENTS
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The next term has 96 digits. - Harvey P. Dale, Apr 29 2011.
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 1..16
Ron Knott, The Mathematics of the Fibonacci series.
Ron Knott, Pi and the Fibonacci Numbers.
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EXAMPLE
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Lucas(2*5)=3*41, Lucas(2*7)=3*281, Lucas(2*13)=3*90481.
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MATHEMATICA
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Select[Table[LucasL[2n]/3, {n, 400}], PrimeQ] (* Harvey P. Dale, Apr 29 2011 *)
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CROSSREFS
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Values of n are given in A074304.
Sequence in context: A140013 A342299 A167741 * A090833 A201043 A002646
Adjacent sequences: A074278 A074279 A074280 * A074282 A074283 A074284
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KEYWORD
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nonn
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AUTHOR
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Shane Findley, Sep 21 2002
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STATUS
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approved
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