👉 In mathematics, a chainman is an object that represents a sequence of numbers. A chainman can be defined as a function that takes a sequence of positive integers (or any other finite set) and returns another sequence of positive integers. For example, if we have a sequence [1, 3, 5, 7] and we want to find the "chain" of these numbers, which is a sequence of numbers that are in increasing order but cannot be represented as a single
