ペラン数すうMeanings1nounPerrin numbermathematicsA term from mathematics; refers to a specific integer sequence defined by a recurrence relation.ペラン数すうは、3, 0, 2, 3, 2, 5, 5, 7, 10, ... と続つづく数すう列れつです。The Perrin numbers are a sequence that goes 3, 0, 2, 3, 2, 5, 5, 7, 10, ...