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z(14,16) = 60

Neither of two scaffolds yielded a matrix of weight greater than 60.

Scaffold: $p=3$, $q=4$, $\mathbf{m}=(3,3,3)$, $\mathbf{n}=(3,2,2,2)$, $m_O=2$, $n_O=1$.

(0.197042641 seconds, score = 0, 1936 recursive calls, max depth = 17)

Scaffold: $p=3$, $q=4$, $\mathbf{m}=(3,3,3)$, $\mathbf{n}=(3,3,2,2)$, $m_O=2$, $n_O=0$.

(0.080897432 seconds, score = 0, 613 recursive calls, max depth = 16)

upper bound = 60, submitted by Andrew Kay on April 22nd, 2016 (link)

By deleting 7 rows and 5 columns from the finite projective plane of order 4.

lower bound = 60, submitted on April 22nd, 2016 (link)

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