# [seqfan] Re: Another BBP formula for ln(2) ?

Edwin Clark eclark at math.usf.edu
Sun Jul 5 08:09:55 CEST 2009

```If I have made a mistake, this is the result of a maple lprint:

230166911/331873080-(1/35917)*(Sum((1/2)^k*(11/k+10/(k+1)+9/(k+2)+8/(k+3)+7/(k+4)+6/(k+5)-6/(k+7)-7/(k+8)-8/(k+9)-9/(k+10)-10/(k+11)),
k = 1 .. infinity))

On Sat, 4 Jul 2009, Alexander Povolotsky wrote:

> Dear Simon,
>
> Sorry, I don't have MAPLE or any other package at my disposal.
> I only use ISC , ISC+ (and my head, whatever it is worth for) to work
> this and all other previous formulas.
>
> ISC, though  it is using some version Maple, seems to be not
> supporting lprint construct.
>
> Cheers,
> Alexander R. Povolotsky
> =====================================
> On 7/4/09, Simon Plouffe <simon.plouffe at gmail.com> wrote:
>>
>>
>> Hello,
>>
>>   I have the central term,
>> which I believe is
>>   11     10       9       8       7       6       6       7       8
>>    9        10
>> ---- + ----- + ----- + ----- + ----- + ----- - ----- - ----- - ----- -
>> ------ - ------
>>   k     k + 1   k + 2   k + 3   k + 4   k + 5   k + 7   k + 8   k + 9
>> k + 10   k + 11
>>
>> lprint is :
>> 11/k+10/(k+1)+9/(k+2)+8/(k+3)+7/(k+4)+6/(k+5)-6/(k+7)-7/(k+8)-8/(k+9)-9/(k+10)-10/(k+11);
>>
>>
>> simon plouffe
>>
>>
>>
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>>
>
>
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>

```