Answer:
A sequence
Explanation:
A sequence is a collection of things arranged such that there is order or form in the collection. The components of a sequence are called elements or terms
The pattern in a sequence is achieved by the implementation of well defined rules, such that a term more than one space from a known term can be calculated
An example of a sequence is the following numbers;
1, 6, 11, 17, 22, 28,...
It can be observed that each subsequent term of the sequence is larger than the previous term by 5, therefore, 5 is known as the common difference, and the sequence is known as an arithmetic progression.