Number of fibeven primes (A095080) in range ]2^n,2^(n+1)].

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =3a(5) =9a(6) =16a(7) =25a(8) =50a(9) =83a(10) =150a(11) =286a(12) =540a(13) =975a(14) =1865a(15) =3515a(16) =6588a(17) =12620a(18) =23835a(19) =45486a(20) =86811a(21) =165822a(22) =317770a(23) =608517a(24) =1170182a(25) =2254124a(26) =4342530a(27) =8383468a(28) =16197159a(29) =31335332