ZarankiewiczDB,

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z(5,5 | 5,5) = 125

$I$$I$$I$$I$$I$
$I$$\alpha$$\alpha^2$$\alpha^3$$\alpha^4$
$I$$\alpha^2$$\alpha^4$$\alpha$$\alpha^3$
$I$$\alpha^3$$\alpha$$\alpha^4$$\alpha^2$
$I$$\alpha^4$$\alpha^3$$\alpha^2$$\alpha$

The quotient matrix for the finite projective plane of order 5. $I$ is the identity and $\alpha$ is a 5-cycle.

weight = 125, submitted by Andrew Kay on April 22nd, 2016 (link, raw)

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