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 A117740 Prime Fibonacci numbers that are Chen primes. 0
 2, 3, 5, 13, 89, 233, 514229 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MAPLE ischenprime:=proc(n); if (isprime(n) = 'true') then if (isprime(n+2) = 'true' or numtheory[bigomega](n+2) = 2) then RETURN('true') else RETURN('false') fi fi end: ts_prime_fibonacci_chen:=proc(n) local i, tren, ans; ans:= [ ]: for i from 0 to n do tren := combinat[fibonacci](i): if (isprime( tren ) = 'true' and ischenprime(tren) = 'true') then ans:=[op(ans), tren]: fi od; RETURN(ans) end: ts_prime_fibonacci_chen(300); # Jani Melik, May 05 2006 CROSSREFS Cf. A005478, A109611. Sequence in context: A152114 A139095 A005478 * A041047 A120494 A038601 Adjacent sequences:  A117737 A117738 A117739 * A117741 A117742 A117743 KEYWORD nonn AUTHOR Jani Melik, Apr 28 2006; corrected Apr 28 2006 STATUS approved

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Last modified December 5 12:04 EST 2020. Contains 338947 sequences. (Running on oeis4.)