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!)
A107000 Primes of the form 2x^2-xy+12y^2, with x and y nonnegative. 1

%I #17 Aug 05 2014 14:16:30

%S 2,13,103,107,317,337,487,773,977,1097,1193,1237,1283,1447,1523,1663,

%T 1823,1997,2017,2293,2393,2503,2687,2693,2713,2777,2843,2953,3023,

%U 3067,3137,3347,3413,3433,3457,3517,3547,3677,3947,4157,4283,4297

%N Primes of the form 2x^2-xy+12y^2, with x and y nonnegative.

%C Discriminant=-95.

%H Vincenzo Librandi and Ray Chandler, <a href="/A107000/b107000.txt">Table of n, a(n) for n = 1..10000</a> [First 1000 terms from Vincenzo Librandi]

%H 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)

%t QuadPrimes2[2, -1, 12, 10000] (* see A106856 *)

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005

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 24 10:11 EDT 2024. Contains 371935 sequences. (Running on oeis4.)