F(n)_n where F() = Fibonacci numbers A000045.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =8a(6) =10a(7) =17a(8) =31a(9) =55a(10) =97a(11) =196a(12) =380a(13) =693a(14) =1365a(15) =2439a(16) =6518a(17) =13432a(18) =27950a(19) =50925a(20) =198540a(21) =312203a(22) =660314a(23) =1411928a(24) =2812555a(25) =12815169a(26) =19252925a(27) =52405725a(28) =103362331a(29) =196884120