hmm

by #H34N1, Feb 8, 2009, 3:15 AM

I should like not fail the AMCs. That might rather be helpful

1996.N4 A finite sequence of integers $ a_0, a_1, \ldots, a_n$ is called quadratic if for each $ i$ in the set $ \{1,2 \ldots, n\}$ we have the equality $ |a_i - a_{i - 1}| = i^2.$

a.) Prove that any two integers $ b$ and $ c,$ there exists a natural number $ n$ and a quadratic sequence with $ a_0 = b$ and $ a_n = c.$

b.) Find the smallest natural number $ n$ for which there exists a quadratic sequence with $ a_0 = 0$ and $ a_n = 1996.$

This seems interesting
I should like try to do this

oh yeah pythag seems pretty happy since he got gold in USACO although I have no idea what teh USACO is / what you do in it besides its name lolfailroflcopter

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failing amcs would indeed be rather unhelpful

by not_trig, Feb 8, 2009, 6:34 AM

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Hah reference pronouns lol

"that" refers to not failing AMCs

I should gets like 150s on those AMC dudes

by #H34N1, Feb 8, 2009, 12:31 PM

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pythag got GOLD? HOLY CRAP

by Poincare, Feb 8, 2009, 2:37 PM

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this problem is kind of obnoxious. it's like...casework.

by CatalystOfNostalgia, Feb 11, 2009, 12:32 AM

Click here if you did not make white MOP (Fake copy of pythag's blog)

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