Fibonacci numbers | (F(n) F(n+3))^2 + (2 F(n+1) F(n+2))^2

 
 

Is   ( \,F_{n} \cdot F_{n+3} \,)^2 \; + \; ( \,2 \, F_{n+1} \cdot F_{n+2} \,)^2

a square number for all positive integers   n ?

 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

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About benvitalis

math grad - Interest: Number theory
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