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From: sher@rochester.UUCP (David Sher)
Newsgroups: net.math
Subject: Re: series sum
Message-ID: <14879@rochester.UUCP>
Date: Wed, 29-Jan-86 00:49:42 EST
Article-I.D.: rocheste.14879
Posted: Wed Jan 29 00:49:42 1986
Date-Received: Sat, 1-Feb-86 02:44:46 EST
References: <2265@utcsstat.uucp> <11535@ucbvax.berkeley.edu.BERKELEY.EDU>
Reply-To: sher@rochester.UUCP (David Sher)
Organization: U. of Rochester, CS Dept.
Lines: 12

Regarding the sum of the sums of the first k integers k goes from 1 to n:
How many out there solved it by considerring the volume contained in a 
maximal corner of a cube of size n (the largest volume that you can get by
cutting off a corner of a cube without removing any other corners).  
A little thought will make the relationship between the mathematical
and geometric entities obvious.  (Of course this is high school math 
(I was doing this kind of stuff in high school anyway)).  

-- 
-David Sher
sher@rochester
seismo!rochester!sher