Enable text based alternatives for graph display and drawing entry

Try another version of this question

Find a formula for the general term `a_n` of the sequence assuming the pattern of the first few terms continues.

`{ 3/4, \ 3/16, \ 3/64, \ 3/256, \ 3/1024, \ cdots}`

Assume the first term is `a_1`.

`a_n =`  

Get help: