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A052355 First prime from A031930 (=lesser of 12-twins) with increasing distance to the next 12-twin. 0

%I #12 Apr 29 2019 03:18:44

%S 199,7937,3331,3049,1511,1789,28607,7001,20599,2069,18257,46477,1201,

%T 15569,1459,467,23087,23041,2399,6101,7057,6607,23801,3931,3499,9029,

%U 5197,7841,3191,1237,3259,45767,4801,1811,1709,40867,23497

%N First prime from A031930 (=lesser of 12-twins) with increasing distance to the next 12-twin.

%C The smallest distance between 12-twins [A052380(6)] is 12 and its minimal increment is 2.

%F a(n)=p specifies a quadruple [p, p+12, p+2n+10, p+2n+10+12] with d-pattern of [12, 2n-2, 12].

%e a(2)=7937 results in [7937, 7949, 7951, 7963] p and [12, 2, 12] d- pattern.

%e a(5)=1511 specifies [1511, 1523, 1531, 1543] p and [12, 8, 12] d- pattern without prime in the central gap.

%Y Cf. A031930, A053324, A052380, A052381.

%K nonn

%O 1,1

%A _Labos Elemer_, Mar 07 2000

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Last modified July 30 08:01 EDT 2024. Contains 374738 sequences. (Running on oeis4.)