Floor(AGM(1, Fibonacci(n))), where AGM denotes the arithmetic-geometric mean.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =3a(6) =5a(7) =7a(8) =10a(9) =16a(10) =23a(11) =35a(12) =53a(13) =80a(14) =122a(15) =187a(16) =286a(17) =439a(18) =675a(19) =1041a(20) =1608a(21) =2491a(22) =3864a(23) =6004a(24) =9344a(25) =14563a(26) =22729a(27) =35517a(28) =55566a(29) =87026