Length of binary representation of Fibonacci(2^n).

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =10a(5) =22a(6) =44a(7) =88a(8) =177a(9) =355a(10) =710a(11) =1421a(12) =2843a(13) =5687a(14) =11374a(15) =22748a(16) =45497a(17) =90995a(18) =181991a(19) =363982a(20) =727965a(21) =1455930a(22) =2911861a(23) =5823723a(24) =11647446a(25) =23294892a(26) =46589786a(27) =93179572a(28) =186359144a(29) =372718289