%0 Journal Article %A Quan-Hui Yang %A Qing-Qing Zhao %T Powerful numbers in (1ℓ + qℓ)(2ℓ + qℓ)⋯(nℓ + qℓ) %J Comptes Rendus. Mathématique %D 2018 %P 13-16 %V 356 %N 1 %I Elsevier %R 10.1016/j.crma.2017.11.015 %G en %F CRMATH_2018__356_1_13_0