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@173 --rename fib173

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

assert_eq!(fib173::VALUE, 638817435613190341905763972389505493);

Constants

VALUE

The 173rd Fibonacci number: 638817435613190341905763972389505493