A330278 - OEIS

%I #51 Jun 05 2020 05:59:44

%S 17479880417,158074620437,1071796554401,1087779101699,1153782400787,

%T 1628444511389,2066102452949,2083857437327,2561560206377,

%U 3731086236287,3751571181929,4158362831639,4878193583477,5008751356547,5378606656847,5531533689527,7020090738707,7036216236989

%N Primes starting 12-tuples of consecutive primes that have symmetrical gaps about their mean and form 6 pairs of twin primes.

%H Tomáš Brada, <a href="/A330278/b330278.txt">Table of n, a(n) for n = 1..10000</a> (terms a(7)-a(132) from Giovanni Resta, terms a(133)-a(228) from Franz-Xaver Harvanek)

%e a(1) = A274792(6) = 17479880417 starts a 12-tuple of consecutive primes: 17479880417+s for s in {0, 2, 24, 26, 30, 32, 54, 56, 60, 62, 84, 86} that are symmetric about 17479880417+43 and form 6 pairs of twin primes.

%Y Cf. A055380, A055381, A055382, A081235, A266511, A266512.

%K nonn

%O 1,1

%A _Max Alekseyev_, Dec 08 2019

%E a(2)-a(6) from _Franz-Xaver Harvanek_

%E More terms from _Giovanni Resta_, Dec 10 2019