We define in this paper new distance generalizations of the Pell numbers and the companion Pell numbers. We give a graph interpretation of these numbers with respect to a special 3-edge colouring of the graph.
"On -Distance Pell Numbers in 3-Edge-Coloured Graphs." J. Appl. Math. 2014 1 - 6, 2014. https://doi.org/10.1155/2014/428020