ZarankiewiczDB,

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z(9,34) = 69

11111111
11111111
11111111
11111111
1111111
1111111
1111111
11111111
11111111

Found by the scaffold algorithm.

(0.028709236 seconds, score = 69, 49 recursive calls, max depth = 41)

lower bound = 69, submitted by Andrew Kay on April 22nd, 2016 (link, raw)

By Roman's bound with $p = 2$. [Rom75]

upper bound = 69, submitted on April 22nd, 2016 (link)

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