THE LOG-BEHAVIOR OF THE CATALAN–LARCOMBE–FRENCH SEQUENCE
Abstract
In this paper, we discuss the log-behavior of the Catalan–Larcombe–French sequence {Pn}n≥0. We prove that {Pn}n≥0 is log-balanced and {Pn/(n!)2}n≥0 is unimodal. In addition, we show that {Pk/k!}0≤k≤n is reverse ultra log-concave.