Number of digits in the decimal expansion of Fibonacci(2^n).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =7a(6) =14a(7) =27a(8) =54a(9) =107a(10) =214a(11) =428a(12) =856a(13) =1712a(14) =3424a(15) =6848a(16) =13696a(17) =27393a(18) =54785a(19) =109570a(20) =219140a(21) =438279a(22) =876558a(23) =1753116a(24) =3506231a(25) =7012462a(26) =14024923a(27) =28049846a(28) =56099693a(29) =112199385