Given the sequence
Last edited by infinitebrain (2013-03-08 12:55:30)
The best thing about life is you don't know what to expect
You can use differences to get the answer
In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.
If you subtract consecutive terms, you see that you get:
You could find the quadratic. However, another way is to realize that, which, after solving, gives
Last edited by Stormtangent (2013-03-08 15:25:26)
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