Answer:
[tex]\text{All integers where n}\ge1[/tex]Step-by-step explanation:
A geometric sequence can be defined by the following formula:
[tex]a_n=ar^{n-1}[/tex]Then, if we have a=1 and r=6. Let's see the function for this sequence:
[tex]a_n=6^{n-1}[/tex]*REMEMBER: The domain of a sequence is always n is an element of positive integers, which means, 1,2,3,4...
Therefore, the domain for the sequence would be all integers where n is greater or equal to 1.