- the fist term
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- the fist term
I think there is a mistake in the problem you typed...
Is that:
?
Oh, sorry, I should have paid more attention
n+1 is meant to be subscript, but I don't know how to to write it.
Your sequence goes like this:
-1, -2, -5, -14, -41, -122...
Here's an identity that can help you get started:
For your problem set x = 3. This gives the sequence: 1, 4, 13, 40, 121, etc. Can you see how to modify this to get your sequence?
And to get subscripts in LaTex: enclose the item in squiggly brackets if it's more than one character. Same trick applies to superscripts too. Hence use C_{n+1} = 3C_n +1
to produce:
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