So I have the sequence {13, 11, 9, 7,…} and I need to write a formula to find the nth term. Since it is decreasing by 2 each time, I figured it would be an = an-1 -2, but I realized that you would still have to have the term before to solve for the nth. So how would I come up with a formula that does not need to have any other terms in the sequence besides the first?
2026-03-27 16:53:06.1774630386
Write a Formula For a Sequence
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