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

Table 7

The number of edges of .

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