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How to find an integer set, s.t. the sums of at most 3 elements are all distinct?

Note that there is a bit of a discrepancy between $B_3[1]$ sets and your notion. For $B_3[1]$ sets, one considers sums with exactly 3 elements, instead of at most 3 elements. However, I do not think …
Tony Huynh's user avatar
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