A shift-extension conjecture for Fibonacci divisibility sums
Let denote the th Fibonacci number, and for a positive integer write for the sum of the first Fibonacci numbers. Shift-extension conjecture. For each positive integer , there is a positive integer such that
This conjecture concerns the distribution of positive integers that divide their corresponding sums of initial Fibonacci numbers. The supplied text gives no resolution or further evidence, so the conjecture remains open.
References
Primary source
Daniel Yaqubi and Amirali Fatehizadeh, “Some results on average of Fibonacci and Lucas sequences”, arXiv:2001.11839 (2020).
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