@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/