The important differences between sequence and series are explained in the table given below:
| Sequence | Series |
|---|---|
| In sequence, elements are placed in a particular order following a particular set of rules. | In series, the order of the elements is not necessary. |
| It is just a collection (set) of elements that follow a pattern. | It is a sum of elements that follow a pattern. |
| Order of appearance of the numbers is important. | The order of appearance is not important. |
| Example: Harmonic sequence: 1, 1/2, 1/3, 1/4, … | Example: Harmonic series: 1 + 1/2 + 1/3 + 1/4 + … |