Post AhpGxCChUI9HOwONrk by j2kun@mathstodon.xyz
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 (DIR) Post #AhpGxCChUI9HOwONrk by j2kun@mathstodon.xyz
       2023-10-27T03:19:37Z
       
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       What is the best known bound on the maximum size of a 4-arithmetic-progression-free set in [n]?
       
 (DIR) Post #AhpGxCx8hdINiy7TFY by j2kun@mathstodon.xyz
       2023-10-27T04:02:53Z
       
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       Also of interest to me: how "asymptotic" are the bounds? E.g., is the actual answer for, say, n=30 really far from the asymptotic bound?