On the number of Hamilton cycles in pseudo-random graphs
On the Number of Hamiltonian Groups
On the number of hypercubic bipartitions of an integer
On the Number of Inequivalent Binary Self-Orthogonal Codes
On the number of Latin squares
On the Number of Matchings in Regular Graphs
On the number of matrices and a random matrix with prescribed row and column sums and 0-1 entries
On the number of maximal independent sets in a graph
On the number of monochromatic solutions of integer linear systems on Abelian groups
On the number of mth roots of permutations
On the number of n-ary quasigroups of finite order
On the number of orthogonal systems in vector spaces over finite fields
On the number of outer connected dominating sets of graphs
On the Number of Pentagons in Triangle-Free Graphs
On the number of perfect matchings in random lifts
On the Number of Planar Orientations with Prescribed Degrees
On the number of points in a lattice polytope
On the Number of Pseudo-Triangulations of Certain Point Sets
On the number of regions and multiplicities of vertices in plane arrangements
On the number of return words in infinite words with complexity 2n+1