ZarankiewiczDB,

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

z(20,29) = 120

Given by the convex optimisation bound with 25 columns of weight 4 and 4 columns of weight 5.

upper bound = 120, submitted on April 25th, 2016 (link)

By deleting 11 rows and 2 columns from the finite projective plane of order 5.

lower bound = 120, submitted on April 24th, 2016 (link)

Submit a result or comment?