An Interesting Pattern in the Prime Numbers: Parallax Compression

Re:An Interesting Pattern in the Prime Numbers: Parallax Com... by tomsmeding on Friday May 18, 2018 @04:18PM (#17104639)

You are completely right; their pattern holds iff (I believe, not proven!) the number they take 75 for is even. If you take any even number of rows (== amount of numbers per cell, in their construction), say 6, or 74, or 76, the pattern works.

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Re:An Interesting Pattern in the Prime Numbers: Parallax Com... by anderskaseorg on Friday May 18, 2018 @04:20PM (#17104647)

No, it still fails for even n; see my other comment: https://news.ycombinator.com/item?id=17104624

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Re:An Interesting Pattern in the Prime Numbers: Parallax Com... by tomsmeding on Friday May 18, 2018 @04:23PM (#17104667)

Fair point, I missed that. Scratch my claim.

Then their claim that this pattern holds isn't even true; as pointed out elsewhere, and is obvious when you write out the sequence items explicitly in terms of their coordinates, any gcd!=1 cell will be red. But a gcd=1 cell need not be black, for many n.

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