Sun's prime–Fibonacci–Fibonacci representation conjecture

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Let F0=0F_0=0, F1=1F_1=1, and Fi+1=Fi+Fi−1F_{i+1}=F_i+F_{i-1} for i=1,2,3,…i=1,2,3,\ldots be the Fibonacci sequence. A Fibonacci number is positive when its index is positive and its value is positive. Sun's prime–Fibonacci–Fibonacci conjecture. Every integer n>4n>4 can be written as

n=p+Fs+Ft,n=p+F_s+F_t,

where pp is an odd prime and Fs,FtF_s,F_t are positive Fibonacci numbers; moreover, one of Fs,FtF_s,F_t can be required to be odd. This is a sparse additive analogue of Goldbach's conjecture. The source reports verification up to 101410^{14}, but the conjecture itself remains open.

References

Primary source

Zhi-Wei Sun, “Mixed sums of primes and other terms”, arXiv:0901.3075 (2009).

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