LowerRight is a value that options VertexNumberPosition, VertexLabelPosition, and EdgeLabelPosition can take on in ShowGraph.
NoMultipleEdges is an option value for Type.
NormalDashed is a value that the option EdgeStyle can take on in the graph data structure or in ShowGraph.
NoSelfLoops is an option value for Type.
NumberOfInvolutions[n] counts the number of involutions on n elements.
NumberOfPartitions[n] counts the number of integer partitions of n.
NumberOfPermutationsByCycles[n, m] gives the number of permutations of length n with exactly m cycles.
NumberOfPermutationsByTypes[l] gives the number of permutations of type l.
OctahedralGraph returns the graph corresponding to the octahedron, a Platonic solid.
Optimum
(Combinatorica Package Symbol) Optimum is a value that the option Algorithm can take on when used in functions VertexColoring and VertexCover.