Mathematical sequences are a group of terms with a certain rule that dictates a certain operation must be performed and repeated in order to get from one term to the next.

The operation can be addition, subtraction, multiplication, division, or any other mathematical operation.

**For example,** **the following is a basic numerical series:**$1, 2, 3, 4, 5$

To get from one term to the next in the sequence we add $+1$.

$2 = 1+1$

$3 = 2+1$

$4 = 3+1$

And so on.