Using techniques in interval arithmetic I've managed to extend to 100 terms, but I think it needs some tweaking to reduce intermediate terms a bit more aggressively because it took 90 minutes (C# running under an old Mono - on .Net Core or Framework it's probably faster). gist.github.com/pjt33/b7f61a731717dcf21193a4e7bfe745cf
@FlipTack Yep, I am thinking of that one. Although, sympy with Python doesn't count as a separate language, so he could he been referring to the esoteric language :P