$\"\"$

The sequence is $\"\"$ .

The first term of the sequence is $\"\"$ .

The second term is $\"\"$ .

Observe the terms in the sequence, the sequence is a arithmetic series.

The common difference is $\"\"$ .

The $\"\"$ term of the arithmetic sequence is $\"\"$ .

Substitute $\"\"$ and $\"\"$ .

$\"\"$

$\"\"$ .

The $\"\"$ term of the sequence is $\"\"$ .

$\"\"$

The $\"\"$ term of the sequence is $\"\"$ .