Twin Gauss Circle Primes
Prove that there exist infinitely many integers r ≥ 1 such that both C(r) and C(r + 1), where C(r) is the number of integer lattice points inside the radius‑r circle centered at the origin, are prime numbers.
References
We conjecture the Gauss Circle Prime analogue: there are infinitely many cases when C(r) and C(r +1) are both prime.
— Gauss Circle Primes
(2502.06804 - Ehrenborg, 2 Feb 2025) in Question 4.1, Section 4 (Concluding remarks)