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From: pnp@ihnp1.UUCP (Pete Prokopowicz)
Newsgroups: net.math
Subject: Re: series sum
Message-ID: <381@ihnp1.UUCP>
Date: Fri, 24-Jan-86 14:35:30 EST
Article-I.D.: ihnp1.381
Posted: Fri Jan 24 14:35:30 1986
Date-Received: Sat, 25-Jan-86 08:11:59 EST
References: <2265@utcsstat.uucp>
Reply-To: pnp@ihnp1.UUCP (45262-Pete Prokopowicz)
Organization: ATT Bell Labs
Lines: 3

1 + 3 + 6 + 10 + ... + = ?
the sum of n terms is (n**2 + n) x (n + 2) / 6
I think.