Oh! Too right. My arithmetic error. On Fri, Sep 26, 2014 at 3:58 PM, David Wilson <davidwwilson@comcast.net> wrote:
Alan, I think your 9/2 should be 11/2.
-----Original Message----- From: math-fun [mailto:math-fun-bounces@mailman.xmission.com] On Behalf Of Allan Wechsler Sent: Friday, September 26, 2014 2:20 PM To: math-fun Subject: Re: [math-fun] Observation on Stern-Brocot tree
For the first four rows, I am getting 1, 5/2, 9/2, 23/2. This doesn't seem to match your formula. What are we doing differently?
On Thu, Sep 25, 2014 at 10:51 PM, David Wilson <davidwwilson@comcast.net> wrote:
It appears that the sum of the nth row of the Stern-Brocot Tree is (3*2^(n-2) - 1)/2.
I assume this is known, but I don't know how to prove it.
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