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# Is this true? And if so, is it possible to generalize?

Let $$F_n$$ denote the $$n^\text{th}$$ Fibonacci number, where $$F_0 = 0, F_1 = 1$$ and $$F_n = F_{n-1} + F_{n-2}$$ for $$n=2,3,4,\ldots$$.

Does the sequence $$G_n=F_n^2-28$$ not prime for $$n\geq 6$$?

Note by Santiago Hincapie
10 months, 3 weeks ago