construct/mc bibd
construct/mc bibd: a task in MathConstructOptimize-Envs-harbor (Harbor dataset). A balanced incomplete block design BIBD(19, 9, 4) is a collection of b = 19 blocks, each a set of 9 distinct points from {0, 1, ..., 18}, such that every pair of distinct points is contained in exactly 4 of the blocks…
The task
A balanced incomplete block design BIBD(19, 9, 4) is a collection of b = 19 blocks, each a set of 9 distinct points from {0, 1, ..., 18}, such that every pair of distinct points is contained in exactly 4 of the blocks (consequently every point lies in exactly r = 9 blocks). The same block may appear more than once.