Sum of primes below Fibonacci(n).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =2a(5) =5a(6) =17a(7) =28a(8) =77a(9) =160a(10) =381a(11) =874a(12) =2127a(13) =5117a(14) =12339a(15) =30504a(16) =74139a(17) =182109a(18) =443685a(19) =1111475a(20) =2735692a(21) =6782748a(22) =16853486a(23) =42013901a(24) =104671293a(25) =262299143a(26) =657330956a(27) =1650934893a(28) =4150915841a(29) =10458898439