The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A106962 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A106962

Primes of the form x^2+xy+20y^2, with x and y nonnegative.
(history; published version)

#17 by N. J. A. Sloane at Tue Aug 05 14:16:29 EDT 2014

MATHEMATICA

NON1234QuadPrimes2[1, 1, 20, 10000] (* see A106856 *)

Discussion

Tue Aug 05

14:16

OEIS Server: https://oeis.org/edit/global/2285

#16 by N. J. A. Sloane at Tue Aug 05 14:13:32 EDT 2014

MATHEMATICA

QuadPrimes2NON1234[1, 1, 20, 10000] (* see A106856 *)

Discussion

Tue Aug 05

14:13

OEIS Server: https://oeis.org/edit/global/2283

#15 by OEIS Server at Mon Jul 28 14:37:49 EDT 2014

LINKS

Vincenzo Librandi and Ray Chandler, <a href="/A106962/b106962_1.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi]

#14 by Ray Chandler at Mon Jul 28 14:37:49 EDT 2014

STATUS

editing

approved

Discussion

Mon Jul 28

14:37

OEIS Server: Installed new b-file as b106962.txt.  Old b-file is now b106962_1.txt.

#13 by Ray Chandler at Mon Jul 28 14:37:44 EDT 2014

LINKS

N. J. A. Sloane et al., <a href="https://oeis.org/wiki/Binary_Quadratic_Forms_and_OEIS">Binary Quadratic Forms and OEIS</a> (Index to related sequences, programs, references)

#12 by Ray Chandler at Mon Jul 28 14:37:25 EDT 2014

LINKS

Vincenzo Librandi, <a href="/A106962/b106962.txt">Table of n, a(n) for n = 1..1000</a>

Vincenzo Librandi and Ray Chandler, <a href="/A106962/b106962_1.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi]

MATHEMATICA

QuadPrimes[1, 1, 20, 10000] (* see A106856 *) Note: the original QuadPrimes had a bug which could sometimes give wrong answers. This sequence should be checked (unless the coefficient of xy in the quadratic form is zero, in which case QuadPrimes gives correct answers). - N. J. A. Sloane, Jun 04 2014

QuadPrimes2[1, 1, 20, 10000] (* see A106856 *)

STATUS

approved

editing

#11 by N. J. A. Sloane at Mon Jun 16 11:28:37 EDT 2014

MATHEMATICA

Discussion

Mon Jun 16

11:28

OEIS Server: https://oeis.org/edit/global/2234

#10 by N. J. A. Sloane at Sun Jun 08 14:21:10 EDT 2014

STATUS

editing

approved

#9 by N. J. A. Sloane at Sun Jun 08 14:21:06 EDT 2014

LINKS

N. J. A. Sloane et al., <a href="https://oeis.org/wiki/Binary_Quadratic_Forms_and_OEIS">Binary Quadratic Forms and OEIS</a> (Index to related sequences, programs, references)

STATUS

approved

editing

#8 by N. J. A. Sloane at Wed Jun 04 15:39:47 EDT 2014

MATHEMATICA

QuadPrimes[1, 1, 20, 10000] (* see A106856 *) Note: the original QuadPrimes had a bug which could sometimes give wrong answers. This sequence should be checked. - _N. J. A. Sloane_, Jun 04 2014

Discussion

Wed Jun 04

15:39

OEIS Server: https://oeis.org/edit/global/2225