

A201597


Initial prime in prime triplets (p, p+4, p+6) preceding the maximal gaps in A201596.


3



7, 13, 37, 103, 307, 457, 613, 2137, 2377, 2797, 3463, 4783, 5737, 9433, 14557, 24103, 45817, 52177, 126487, 317587, 580687, 715873, 2719663, 6227563, 8114857, 10085623, 10137493, 18773137, 21297553, 25291363, 43472497, 52645423, 69718147, 80002627, 89776327
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OFFSET

1,1


COMMENTS

Prime triplets (p, p+4, p+6) are one of the two types of densest permissible constellations of 3 primes. Maximal gaps between triplets of this type are listed in A201596; see more comments there.


LINKS

Alexei Kourbatov, Table of n, a(n) for n = 1..79
Tony Forbes, Prime ktuplets
Alexei Kourbatov, Maximal gaps between prime triplets
Eric W. Weisstein, kTuple Conjecture


EXAMPLE

The gap of 6 between triplets starting at p=7 and p=13 is the very first gap, so a(1)=7. The gap of 24 between triplets starting at p=13 and p=37 is a maximal gap  larger than any preceding gap; therefore a(2)=13. The gap of 30 between triplets at p=37 and p=67 is again a maximal gap, so a(3)=37. The next gap is smaller, so it does not contribute to the sequence.


CROSSREFS

Cf. A022005 (prime triplets p, p+4, p+6), A201596.
Sequence in context: A094069 A052378 A090607 * A158375 A144729 A123250
Adjacent sequences: A201594 A201595 A201596 * A201598 A201599 A201600


KEYWORD

nonn


AUTHOR

Alexei Kourbatov, Dec 03 2011


STATUS

approved



