%N Numbers appearing in A122072 at least three times.
%C Necessary condition: p is followed by a prime gap of at least 22. Sufficient condition: p is followed by a prime gap of at least 30. [_Charles R Greathouse IV_, Feb 26 2012]
%H Charles R Greathouse IV, <a href="/A122384/b122384.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n) ~ n log n since this sequence contains almost all primes. [_Charles R Greathouse IV_, Feb 26 2012]
%o (PARI) p=2;forprime(q=3,1e5,if(q\10-p\10>2,print1(p", "));p=q) \\ _Charles R Greathouse IV_, Feb 26 2012
%Y Cf. A122091, A122072.
%A _Zak Seidov_, Oct 19 2006