The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A155152

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A155152

Numbers n such that 13n^2+3n+1 is prime.
(history; published version)

#19 by Charles R Greathouse IV at Thu Sep 08 08:45:40 EDT 2022

PROG

(MAGMAMagma) [n: n in [0..200] | IsPrime(13*n^2+3*n+1)]; // Vincenzo Librandi, Sep 24 2012

Discussion

Thu Sep 08

08:45

OEIS Server: https://oeis.org/edit/global/2944

#18 by Charles R Greathouse IV at Mon May 22 11:56:27 EDT 2017

STATUS

editing

approved

#17 by Charles R Greathouse IV at Mon May 22 11:56:21 EDT 2017

PROG

(PARI) is(n)=isprime(13*n^2+3*n+1) \\ Charles R Greathouse IV, May 22 2017

STATUS

approved

editing

#16 by Charles R Greathouse IV at Thu Nov 21 12:49:31 EST 2013

MATHEMATICA

Select[Range[200], PrimeQ[13#^2+3#+1]&] (* From _Harvey P. Dale, _, Dec 08 2011 *)

Discussion

Thu Nov 21

12:49

OEIS Server: https://oeis.org/edit/global/2062

#15 by N. J. A. Sloane at Mon Sep 02 22:32:41 EDT 2013

STATUS

proposed

approved

#14 by Jon E. Schoenfield at Mon Sep 02 13:42:06 EDT 2013

STATUS

editing

proposed

#13 by Jon E. Schoenfield at Mon Sep 02 13:42:03 EDT 2013

EXTENSIONS

Definition corrected and terms recomputed by _Jon E. Schoenfield _ and N. J. A. Sloane, Jun 16 2010

STATUS

approved

editing

#12 by N. J. A. Sloane at Wed May 01 21:09:56 EDT 2013

EXTENSIONS

Definition corrected and terms recomputed by Jon Schoenfield and _N. J. A. Sloane, _, Jun 16 2010

Discussion

Wed May 01

21:09

OEIS Server: https://oeis.org/edit/global/1899

#11 by Bruno Berselli at Tue Sep 25 06:25:24 EDT 2012

STATUS

proposed

approved

#10 by Vincenzo Librandi at Mon Sep 24 13:56:01 EDT 2012

STATUS

editing

proposed

Discussion

Tue Sep 25

06:25

Bruno Berselli: (Vincenzo, please see A092562, A099442. Thanks.)