@article{00927119, title = {Pentagonal numbers in the Lucas sequence.}, journal = {Portugaliae Mathematica. Nova S\'erie}, volume = {53}, year = {1996}, pages = {325-329}, zbl = {0854.11011}, language = {en}, url = {http://dml.mathdoc.fr/item/00927119} }
Luo, Ming. Pentagonal numbers in the Lucas sequence.. Portugaliae Mathematica. Nova Série, Tome 53 (1996) pp. 325-329. http://gdmltest.u-ga.fr/item/00927119/