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Given the sequence
I found the answer as 291, through a tedious guess and check method, but I'd like someone to explain in simpler terms how to find k.
Last edited by infinitebrain (2013-03-09 11:55:30)
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Re: Sequence question
Subtracting again, you get
You could find the quadratic. However, another way is to realize that , which, after solving, gives
Last edited by Stormtangent (2013-03-09 14:25:26)
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