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A122091
Numbers appearing in A122072 at least twice.
3
199, 317, 509, 523, 619, 839, 887, 1069, 1129, 1259, 1327, 1409, 1459, 1499, 1637, 1669, 1709, 1759, 1789, 1847, 1889, 1913, 1951, 2039, 2069, 2099, 2179, 2311, 2357, 2399, 2477, 2503, 2557, 2579, 2819, 2939, 2971, 3049, 3089, 3137, 3169, 3229, 3259
OFFSET
1,1
COMMENTS
Necessary condition: p is followed by a prime gap of at least 12. Sufficient condition: p is followed by a prime gap of at least 20. [Charles R Greathouse IV, Feb 26 2012]
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
FORMULA
a(n) ~ n log n since this sequence contains almost all primes. [Charles R Greathouse IV, Feb 26 2012]
PROG
(PARI) p=2; forprime(q=3, 1e5, if(q\10-p\10>1, print1(p", ")); p=q) \\ Charles R Greathouse IV, Feb 26 2012
CROSSREFS
Cf. A122072.
Sequence in context: A213078 A142682 A088294 * A142749 A142123 A046006
KEYWORD
nonn
AUTHOR
Zak Seidov, Oct 17 2006
STATUS
approved