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@121 --rename fib121

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

assert_eq!(fib121::VALUE, 8670007398507948658051921);

Constants

VALUE

The 121st Fibonacci number: 8670007398507948658051921