The Nth Term of a Sequence Is Given $$a _ { n } = 2 ^ { n } + 9 ; a _ { 6 }$$

The nth term of a sequence is given. Find the indicated term.
- $$a _ { n } = 2 ^ { n } + 9 ; a _ { 6 }$$

A) 73
B) 576
C) 108
D) 21