Tolong jelaskan mengenai Quartan primes dari Daftar bilangan prima

Of the form x + y, where x,y > 0.

2, 17, 97, 257, 337, 641, 881 ()

Integers R that are the smallest to give at least n primes from x/2 to x for all x ≥ R (all such integers are primes).

2, 11, 17, 29, 41, 47, 59, 67, 71, 97, 101, 107, 127, 149, 151, 167, 179, 181, 227, 229, 233, 239, 241, 263, 269, 281, 307, 311, 347, 349, 367, 373, 401, 409, 419, 431, 433, 439, 461, 487, 491 ()