perplexus.info :: Numbers : An Odd Pyramid

An Odd Pyramid (Posted on 2003-10-14)

Consider the numerical pyramid below, formed by simply putting down the series of odd numbers into a pyramid.

           1
         3   5
       7   9   11
    13  15  17   19
      . . .

Find a formula for the sum of the numbers in the nth row, and prove it.

See The Solution Submitted by DJ

Rating: 4.1667 (12 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re(4): solution (Well done)

| Comment 11 of 21 |

(In reply to re(3): solution (Well done) by ratsnstuff)

I'm flattered ratsnstuff,

(If only I could take credit for this approach :-)

"...for I am standing on the shoulders of giants." --- Newton

Posted by SilverKnight on 2003-10-16 09:33:10

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