ZarankiewiczDB,

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z(12,19) = 60

11111
11111
11111
11111
11111
11111
11111
11111
11111
11111
11111
11111

Found by the scaffold algorithm.

(0.025947432 seconds, score = 60, 43 recursive calls, max depth = 20)

lower bound = 60, submitted by Andrew Kay on April 22nd, 2016 (link, raw)

By Roman's bound with $p = 3$. [Rom75]

upper bound = 60, submitted on April 22nd, 2016 (link)

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