ZarankiewiczDB,

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z(29,30) = 170

By Damásdi, Héger and Szőnyi's recursive bound with $\alpha=1$ and $\beta=6$. [DHS13, p. 17]

upper bound = 170, submitted on April 24th, 2016 (link)

By deleting 2 rows and 1 column from the finite projective plane of order 5.

lower bound = 170, submitted on April 24th, 2016 (link)

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