ZarankiewiczDB,

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z(25,26) = 134

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

lower bound = 134, submitted on April 27th, 2016 (link)

Searching for matrices of weight greater than 134, all scaffolds were eliminated without search.

upper bound = 134, submitted by Andrew Kay on April 27th, 2016 (link)

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