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A191421 Prime numbers that contain the string "2011" in their decimal expansion. 1

%I #13 Sep 08 2022 08:45:57

%S 2011,12011,20113,20117,62011,122011,162011,182011,201101,201107,

%T 201119,201121,201139,201151,201163,201167,201193,222011,272011,

%U 282011,320113,320119,332011,392011,512011,520111,552011,582011,612011,620111,620117

%N Prime numbers that contain the string "2011" in their decimal expansion.

%C Curious prime numbers, which contain string the "2011", referring to the current year.

%H Klaus Brockhaus, <a href="/A191421/b191421.txt">Table of n, a(n) for n = 1..2000</a>

%H Rafael Parra Machío, <a href="http://hojamat.es/parra/prop2011.pdf">Propiedades del 2011: Un paseo a través de los números primos, p. 2</a> (Spanish)

%F a(n) ~ n log n. - _Charles R Greathouse IV_, Jun 02 2011

%o (Magma) [ p: p in PrimesInInterval(2011,1000000) | IntegerToString(2011) in IntegerToString(p) ]; // _Klaus Brockhaus_, Jun 02 2011

%K nonn,base

%O 1,1

%A _Rafael Parra Machio_, Jun 02 2011

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)