k-th upper twin prime, where k is the n-th Fibonacci number.

Terms

a(0) =5a(1) =5a(2) =7a(3) =13a(4) =31a(5) =73a(6) =181a(7) =349a(8) =859a(9) =1723a(10) =3361a(11) =6091a(12) =11833a(13) =22273a(14) =41959a(15) =77713a(16) =138403a(17) =249439a(18) =447793a(19) =799741a(20) =1399201a(21) =2459923a(22) =4312741a(23) =7581943a(24) =13233841a(25) =23019043a(26) =39921979a(27) =69112963a(28) =119168383a(29) =205190353