login
This site is supported by donations to The OEIS Foundation.

 

Logo

Many excellent designs for a new banner were submitted. We will use the best of them in rotation.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A139843 Primes of the form 6x^2+17y^2. 3
17, 23, 41, 71, 113, 167, 233, 311, 401, 431, 449, 479, 503, 521, 617, 641, 719, 743, 809, 839, 857, 881, 887, 911, 929, 983, 1031, 1049, 1151, 1193, 1217, 1289, 1319, 1367, 1433, 1439, 1553, 1559, 1601, 1697, 1847, 2063, 2081, 2111, 2153, 2207 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-408. See A139827 for more information.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

FORMULA

The primes are congruent to {17, 23, 41, 65, 71, 95, 113, 143, 167, 209, 215, 233, 311, 329, 335, 377, 401} (mod 408).

MATHEMATICA

QuadPrimes[6, 0, 17, 10000] (* see A106856 *)

PROG

(MAGMA) [ p: p in PrimesUpTo(3000) | p mod 408 in {17, 23, 41, 65, 71, 95, 113, 143, 167, 209, 215, 233, 311, 329, 335, 377, 401}]; // Vincenzo Librandi, Jul 29 2012

CROSSREFS

Sequence in context: A103805 A156567 A231332 * A151953 A102874 A086532

Adjacent sequences:  A139840 A139841 A139842 * A139844 A139845 A139846

KEYWORD

nonn,easy

AUTHOR

T. D. Noe, May 02 2008

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified April 17 20:01 EDT 2014. Contains 240655 sequences.