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Have a Fibonacci Day!
Have a Fibonacci Day!

The Fibonacci numbers are defined as F0 = F1 = 1 and Fn+1 = Fn + Fn-1.

Calculate the following infinite sum:

 F0      3F1      32F2          3nFn 
---  +  ----  +  ----- + ... + ----- + ...
 1        5        52           5n


Problem Moderated by: Graeme
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