Arthur B. @ArthurB · 29 Aug 2026
Not a world record, but a pretty good one, and novel afaict π/4 = 83·cot⁻¹(107) + 17·cot⁻¹(1710) − 22·cot⁻¹(102928) − 24·cot⁻¹(2513489) + 22·cot⁻¹(3853963) − 22·cot⁻¹(5332372) + 12·cot⁻¹(7939642926390344818) Lehmer measure: 1.511221
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