login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A142493 Primes congruent to 28 mod 51. 1

%I #11 Sep 08 2022 08:45:36

%S 79,181,283,487,691,997,1201,1303,1609,2017,2221,2731,2833,3037,3343,

%T 3547,3853,4057,4159,4261,4363,4567,5077,5179,5281,5689,5791,6199,

%U 6301,6607,6709,7219,7321,7933,8443,8647,9157,9463,9769,9871,9973,10177,10687,10789

%N Primes congruent to 28 mod 51.

%H Vincenzo Librandi, <a href="/A142493/b142493.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) ~ 32n log n. - _Charles R Greathouse IV_, Jul 03 2016

%t Select[Prime[Range[2400]], MemberQ[{28}, Mod[#, 51]] &] (* _Vincenzo Librandi_, Aug 28 2012 *)

%t Select[Range[28,11000,51],PrimeQ] (* _Harvey P. Dale_, Oct 07 2019 *)

%o (Magma) [p: p in PrimesUpTo(13000) | p mod 51 eq 28]; // _Vincenzo Librandi_, Aug 28 2012

%o (PARI) is(n)=isprime(n) && n%51==28 \\ _Charles R Greathouse IV_, Jul 03 2016

%Y Cf. A000040.

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_, Jul 11 2008

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 16 17:36 EDT 2024. Contains 371749 sequences. (Running on oeis4.)