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A332676 Prime numbers p_k such that p_k == 3 (mod 10) and p_(k+1) == 3 (mod 10). 3

%I #14 May 08 2020 15:17:54

%S 283,1153,1723,2053,2143,3413,3583,3823,3853,4243,4273,4363,4483,4663,

%T 5323,5903,6133,6163,6343,6553,6793,6803,7253,7963,8243,8353,8543,

%U 8563,8783,8893,9283,9403,10223,10303,10433,10993,11093,11383,12253,12703,13063,13513,13933,14293,14983

%N Prime numbers p_k such that p_k == 3 (mod 10) and p_(k+1) == 3 (mod 10).

%H Robert Israel, <a href="/A332676/b332676.txt">Table of n, a(n) for n = 1..10000</a>

%H R. J. Lemke Oliver and K. Soundararajan, <a href="http://arxiv.org/abs/1603.03720">Unexpected biases in the distribution of consecutive primes</a>, arXiv:1603.03720 [math.NT], 2016.

%H R. J. Lemke Oliver and K. Soundararajan, <a href="https://doi.org/10.1073/pnas.1605366113">Unexpected biases in the distribution of consecutive primes</a>, Proceedings of the National Academy of Sciences of the United States of America, Vol. 113, No. 31 (2016), E4446-E4454.

%p filter:= t -> isprime(t) and nextprime(t) mod 10 = 3:

%p select(filter, [seq(i,i=3..20000,10)]); # _Robert Israel_, May 08 2020

%t First @ Transpose @ Select[Partition[Select[Range[20000], PrimeQ], 2, 1], Mod[First[#], 10] == 3 && Mod[Last[#], 10] == 3 &] (* _Amiram Eldar_, Feb 19 2020 *)

%Y Cf. A030430 (1, any), A330366 (1, 1), A331555 (1, 3), A331324 (1, 7), A332674 (1, 9), A030431 (3, any), A332675 (3, 1), this sequence (3, 3), A030432 (7, any), A030433 (9, any) [where (a, b) means p_k == a (mod 10) and p_(k+1) == b (mod 10)].

%K nonn

%O 1,1

%A _A.H.M. Smeets_, Feb 19 2020

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)