Difference between n-th Fibonacci number and floored n-th power of Viswanath's constant.

Terms

a(0) =0a(1) =0a(2) =1a(3) =2a(4) =4a(5) =6a(6) =11a(7) =19a(8) =31a(9) =52a(10) =86a(11) =140a(12) =228a(13) =372a(14) =604a(15) =980a(16) =1589a(17) =2575a(18) =4171a(19) =6754a(20) =10933a(21) =17696a(22) =28640a(23) =46349a(24) =75003a(25) =121368a(26) =196390a(27) =317779a(28) =514193a(29) =831999