Asymptotic correction term in the average number of representations of an integer as a sum of two squares: Σ_{k≤n} r₂(k)/k = π ln n + K + o(1).
Asymptotic correction term in the average number of representations of an integer as a sum of two squares: Σ_{k≤n} r₂(k)/k = π ln n + K + o(1).