Maybe it's a typo??

Hi everybody,
So I was wondering why it's (3/2)^9 instead of (3/2)^8 because I thought that 1 was the 1st term of the sequence and so the nth term of the first sequence should be 2^(n1) instead of 2^n. If 1 doesn't "count" as the first term in the sequence can someone fix it to specify it in the problem?
Thanks!

@energizedpanda Yeah, you're absolutely right! It needs to specify that 1 is the 0th term in order for (3/2)^9 to be correct. I'll go ahead and report that now!