stats, combinat, FrF2, igraph, lhs (>= 1.1.3), conf.design
stats, combinat, FrF2, igraph, lhs (>= 1.1.3), conf.design,
iterators, itertools
stats, combinat, FrF2, igraph, lhs (>= 1.1.3), conf.design,
sfsmisc, partitions