Here is a sequence of patterns made from dots.
Find an expression, in terms of n, for the number of dots in Pattern number n.
![Here is a sequence of patterns made from dots Find an expression in terms of n for the number of dots in Pattern number n class=](https://us-static.z-dn.net/files/d31/8be3b8c80d090107f7f406708c7d06c8.jpg)