The computations supplement others on this Stieltjes-related website

Data for the derivatives of "xiderivativeatsequalhalf" (and available here); once ported in to Mathematica, values reported are exact to all digits except the last digit is rounded.

Values of are depicted below, and housed in the file "sigmavalues2005" - available online - and again, once ported in to Mathematica, the values are exact to all digits except last digit is rounded.

Note that these results were computed in September and early October 2005, and are unpublished.  

For more information, please contact Dr. Rick Kreminski: webpage, kremin@boisdarc.tamu-commerce.edu.