(mathematics) a progression in which a constant is added to each term in order to obtain the next term; "1-4-7-10-13- is the start of an arithmetic progression"

a finite evenly spaced sequence of natural numbers

a sequence in which each term is derived from the preceding one by adding a given number, d, called the common difference

a sequence of numbers in which the difference between any element and its predecessor is constant

a sequence of numbers where each is the same amount more than the one before

In mathematics, an arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant. For instance, the sequence 3, 5, 7, 9, 11, 13... is an arithmetic progression with common difference 2.