ZarankiewiczDB,

an online database of Zarankiewicz numbers. home; recent; tables; submit; theorems & references

z(9,13) = 37

By adding a column of weight 1 to z(9,12).

lower bound = 37, submitted on April 22nd, 2016 (link)

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

upper bound = 37, submitted on April 22nd, 2016 (link)

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