Wiener Number of Hexagonal Jagged-rectangles

The Wiener number of a connected graph is equal to the sum of distances between all pairs of its vertices. A graph formed by a row of n hexagonal cells is called an n-hexagonal chain. Wiener number of an n x m hexagonal rectangle was found by the authors. An n x m hexagonal jagged-rectangle whose shape forms a rectangle and the number of hexagonal cells in each chain alternate between n and n 1. In the paper, we obtain the Wiener numbers of three types of II x M hexagonal jagged-rectangles. A MS c.l~r.s.sjfic.crtions: 05C 12 K~~,words: Wiener number; Hexagonal rectangle; Hexagonal jagged-rectangle