ZarankiewiczDB,

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

z(13,20) = 66

11111
11111
11111
11111
11111
11111
11111
11111
11111
11111
11111
11111
111111

Found by the scaffold algorithm.

(4.97096279 seconds, score = 66, 29272 recursive calls, max depth = 30)

lower bound = 66, submitted by Andrew Kay on April 22nd, 2016 (link, raw)

By Roman's bound with $p = 3$. [Rom75]

upper bound = 66, submitted on April 22nd, 2016 (link)

Submit a result or comment?