SOLUTION: for the sequence,describe the pattern, write the next term, and write a rule for the nth term 1,2,4,8

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Question 745856: for the sequence,describe the pattern, write the next term, and write a rule for the nth term
1,2,4,8
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
this sequence is the powers of 2, so the next term is 16 and the rule for the nth term is
a%5Bn%5D=2%5E%28n-1%29
notice we subtract 1 from n (why?)

:)