R.E. Boss posted the following challenge to the J Programming Forum. Unfortunately, I was unable to access the link he provided, so I've included what I think is the relevant portion below in the section The Series.
from: R.E. Boss email@example.com via srs.acm.org to: Programming forum <firstname.lastname@example.org> date: Mon, May 14, 2012 at 5:02 AM subject: [Jprogramming] Challenge 12(?)
I scanned a part of Exploratory Experimentation and Computation, https://www.opendrive.com/files?57384074_sCfMP , where two statements are made about a very rapidly convergent series.
1. The first term coincides with (pi % 8) in the first 42 digits 2. The first 2 terms even give 500 digits
How can these two statements be confirmed (or rejected) with J?
(No deadlines apply.)
From this PDF on the website of the AMS (American Mathematical Society):