2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/152941In this paper we give graphs with the largest known order for a given degree $Δ$ and diameter $D$. The graphs are constructed from Moore bipartite graphs by replacement of some vertices by adequate structures. The paper also contains the latest version of the $(Δ, D)$ table for graphs.12 pagesCombinatorics05C12 05C35text