Catalan's constant G; appears in combinatorics and evaluating integrals of the form ∫₀¹ dx/(1+x²) · ln-like factors. Irrationality is open.
Catalan's constant G; appears in combinatorics and evaluating integrals of the form ∫₀¹ dx/(1+x²) · ln-like factors. Irrationality is open.