Fun with Fibonacci

[danbaron]

We went through the Ackermann function before, here, Johan.

http://www.thinbasic.com/community/s...searchid=60624

Maybe it's time to go back to it again, and at least calculate, A(4, 2).

[A(4, 3) = 2^2^65536 - 3.

From within the REPL in DrRacket (using unlimited memory), I tried to execute,

(define a (- (expt 2 (expt 2 65536)) 3)),

and, DrRacket crashed.]