ZarankiewiczDB,

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Matrix for z(13,13)

1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111

The unique finite projective plane of order 3; extremal by Reiman's theorem. [Rei58]

weight = 52, submitted on April 22nd, 2016 (link, raw)

Related: Matrix 35, Matrix 37, Bound 1728, Bound 1727, Bound 1726, Bound 1725, Bound 1724