Research Article

Distance-Based Polynomials and Topological Indices for Hierarchical Hypercube Networks

Table 2

Pair of vertices in HHC-1 at different distances.

mn
345678...

8168296424552680808...
9232360488616744...
10168296424552680...
11232360488616...
12168296424552...
13232360488...
14168296424...
15232360...
16168296...
17232...
18168...
19...
20..
21.