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A321792
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Lesser of twin primes of the form 6*Fibonacci(k)-1.
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0
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OFFSET
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1,1
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COMMENTS
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Corresponding values for k are 1 or 2, 3, 4, 5, 24, 64, ... Also a(7), if it exists, exceeds 6*Fibonacci(150000).
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LINKS
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EXAMPLE
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17 = 6*Fibonacci(4) - 1 = 6*3 - 1.
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PROG
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(PARI)
for (n=2, 1000, if (ispseudoprime (p=6*fibonacci(n)-1) && ispseudoprime (p+2), print1(p", ")))
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CROSSREFS
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Cf. A001359 (lesser of twin primes).
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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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