I'm not sure who should be announcing this, but Neil noticed that Eric Weisstein has quietly smashed Neil's record, and *finally* my 878M largest term. --rwg ---------- Forwarded message ---------- From: Neil Bickford <techie314@gmail.com> Date: Fri, Sep 16, 2011 at 10:12 PM Subject: Re: Looks like Weisstein's got the record again To: Eric Weisstein <eww@wolfram.com> Cc: Bill Gosper <billgosper@gmail.com> Wow! A new largest term (at less than a trillion) and 2.9B terms? That's amazing! Congratulations! Also, clearly the computer you ran it on has much better specs than mine, and perhaps this new version of Mathematica (M--?) has a new, faster ContinuedFraction! (Or maybe it's just parallelized to multiple cores, that would work too) Anyways, congratulations on trouncing my record (by 6x, no less)! You can certainly count me in for the next version. --Neil On Sep 16, 2011, at 1:40 PM, Eric Weisstein <eww@wolfram.com> wrote:

On 9/16/11 3:17 PM, Bill Gosper wrote:

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Eric, what's the new largest term?!

Unfortunately, still 5408240597; see http://oeis.org/A033089. I didn't do anything special; just ran the computation for 3.75 CPU-hours using 45 GB of RAM with a developmental version of M--. I now have access to a machine with a bit more memory, so I'll try to push it a but further over the weekend.

Cheers (and congratulations to you, Neil). -Eric

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On Fri, Sep 16, 2011 at 8:15 AM, Neil Bickford<techie314@gmail.com> wrote:

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See http://mathworld.wolfram.com/PiContinuedFraction.html , bottom row of table. I have no idea how much memory he used to accomplish that! --Neil