ZarankiewiczDB,

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Matrix for z(13,37)

1111111
1111111
1111111
1111111
1111111
1111111
111111
1111111
111111
1111111
1111111
1111111
111111111111

A construction using Matrix 2034.

lower bound = 94, submitted by Andrew Kay on May 3rd, 2016 (link, raw)