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@103 --rename fib103

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

assert_eq!(fib103::VALUE, 1500520536206896083277);

Constants

VALUE

The 103rd Fibonacci number: 1500520536206896083277