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So how is the Fibonacci sequence defined in this challenge?
Like this?:
Fib(0) = 0
Fib(1) = 1
Fib(2) = 1
Fib(3) = 2
Fib(1 500 000) <--

A little question to the 2 (!) solvers:
Did you type the numers by hand or are speech recognition tools able to understand numbers?
And how can a get the size of the picture?