Chemical Applicability of Newly Introduced Topological Invariants and Their Relation with Polycyclic Compounds

Table 9

The number of edges of .

	Frequency
(4, 5)
(3, 4)
(5, 5)
(3, 5)
(2, 3)
(4, 2)
(5, 6)
(6, 6)
(4, 7)
(7, 5)
(4, 4)
(6, 3)
(6, 8)
(8, 9)
(8, 5)
(7, 9)
(9, 9)
(6, 7)
(8, 8)