2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/125595We prove a few new properties of a Hankel transform related to limited series expansions. This preprint superseed the preprint math.CO/0303221 of the first author.written in french, 13 pages, 5 figuresCombinatorics05A15,05A19,15A15text