wheelGraph -- Constructs a wheel graph

• Usage:

  G = wheelGraph n

• Inputs:
  • n, an integer,
• Outputs:
  • G, a graph, The wheel graph with n vertices

i1 : G = wheelGraph 6

o1 = Graph{0 => {1, 2, 3, 4, 5}}
           1 => {0, 2, 5}
           2 => {0, 1, 3}
           3 => {0, 2, 4}
           4 => {0, 3, 5}
           5 => {0, 1, 4}

o1 : Graph