Crate fibonacci_numbers 

fibonacci-numbers

First install the version of this crate corresponding to the Fibonacci number you want to use:

cargo add fibonacci-numbers@128 --rename fib128

Then you can use the VALUE constant to get its value:

assert_eq!(fib128::VALUE, 251728825683549488150424261);

Constants

VALUE

The 128th Fibonacci number: 251728825683549488150424261