ZarankiewiczDB,

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z(15,16) = 64

R. K. Guy [Guy69] gave an incorrect value of 63.

submitted by Andrew Kay on April 22nd, 2016 (link)

By deleting 6 rows and 5 columns from the finite projective plane of order 4.

lower bound = 64, submitted on April 22nd, 2016 (link)

By Damásdi, Héger and Szőnyi's recursive bound with $\alpha = 1$ and $\beta = 5$. [DHS13, p. 17]

upper bound = 64, submitted on April 22nd, 2016 (link)

By Damásdi, Héger and Szőnyi's recursive bound with $\alpha = 1$ and $\beta = 4$. [DHS13, p. 17]

upper bound = 64, submitted on April 22nd, 2016 (link)

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