NormalDashed is a value that the option EdgeStyle can take on in the graph data structure or in ShowGraph.
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.
Ordered
(Combinatorica Package Symbol) Ordered is an option to the functions KSubsetGroup and KSubsetGroupIndex that tells the functions whether they should treat the input as sets or tuples.
PermutationQ[p] yields True if p is a list representing a permutation and False otherwise.
Permute
(Combinatorica Package Symbol) Permute[l, p] permutes list l according to permutation p.
RandomHeap[n] constructs a random heap on n elements.