On the limiting distribution for the length of the longest alternating sequence in a random permutation.
On the measurement of the (non)linearity of Costas permutations.
On the modes of polynomials derived from nondecreasing sequences.
On the multiplicative independence of binomial coefficients
On the non-holonomic character of logarithms, powers, and the th prime function.
On the number of antichains of finite power sets
On the number of derangements of a sharply k-ply transitive set of permutations.
On the number of descendants and ascendants in random search trees.
On the number of distributive lattices.
On the Number of Faces of Simplicial Complexes and the Purity of Frobenius.
On the number of fully packed loop configurations with a fixed associated matching.
On the number of genus one labeled circle trees.
On the number of intervals in Tamari lattices. (Sur le nombre d'intervalles dans les treillis de Tamari.)
On the number of labeled -arch graphs.
On the number of matchings in regular graphs.
On the number of monotonic functions from two-valued logic to -valued logic
On the number of m-term zero-sum subsequences
On the number of non-isomorphic Steiner triples
On the number of pairs of partitions of n without common subsums
On the number of permutations admitting an th root.