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z(21,29) = 125

Given by the convex optimisation bound with 20 columns of weight 4 and 9 columns of weight 5.

upper bound = 125, submitted on April 25th, 2016 (link)

By deleting 10 rows and 2 columns from the finite projective plane of order 5.

lower bound = 125, submitted on April 24th, 2016 (link)

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