nth term

The nth term is an expression which uses the variable n to discover specific terms in a specific sequence.

For example, with the expression 4n + 3, we can calculate the first three terms of the sequence as follows:

$$4\times <!--\; \times \; -->1+3=7$$

$$4\times <!--\; \times \; -->2+3=11$$


$$4\times <!--\; \times \; -->3+3=15$$

We can discover any term in the sequence using this rule. For example, the 50th term would be $$4\times <!--\; \times \; -->50+3=203.$$