2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/122143For each element of certain families of integer sequences, we study the term-wise ratios of the Hankel transforms of three sequences related to that element by series reversion. In each case, the ratios define well-known sequences, and in one case, we recover the initial sequence.9 pagesCombinatorics11B33 (Primary), 11C20, 11Y55 (Secondary)text