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A178145
6n-1,6n+1, 6n+5, 6n+7 are all primes. That is they are adjacent pairs of twin primes.
1
1, 2, 17, 32, 137, 247, 312, 347, 542, 577, 942, 1572, 2167, 2607, 2622, 2677, 3007, 3152, 3237, 3502, 3712, 4217, 5287, 5807, 7297, 8557, 9222, 10497, 11202, 11582, 12037, 12877, 13282, 13507, 13787, 14802, 16307, 16522, 16852, 18307, 19422
OFFSET
1,2
COMMENTS
The sequence A002822, gives the values of n to generate the twin primes, 6n+/-1. It has the values 1, 2, 3, 5, 7, 10, 12, 17, 18, 23, . This new sequence lists the lower of the values of this which are adjacent, namely 1(&2), 2 (&3), 17 (&18)..
LINKS
MATHEMATICA
(First[#]+1)/6&/@Select[Partition[Prime[Range[12000]], 4, 1], Differences[#] == {2, 4, 2}&] (* Harvey P. Dale, Jan 23 2012 *)
CROSSREFS
Sequence in context: A344187 A212740 A212742 * A055261 A307690 A100294
KEYWORD
nonn
AUTHOR
Anthony C Robin, May 21 2010
EXTENSIONS
Extended by D. S. McNeil, May 23 2010
STATUS
approved