#!/usr/local/bin/node
var fib = (function(fibs){
  return function f(n){
    if (fibs[n]) return fibs[n];
    return fibs[n] = n === 0 ? 0
                   : n === 1 ? 1
                   : fibs(n-2) + fibs(n-1);
})([0,1]);

for (var i = 1; i < 80; i++)
  console.log('F(' + i + ') = ' + fib(i));