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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A106903 Primes of the form x^2+xy+13y^2, with x and y nonnegative. 0
13, 19, 43, 67, 103, 127, 151, 157, 223, 229, 271, 307, 331, 349, 373, 409, 421, 433, 457, 523, 577, 613, 661, 727, 733, 739, 757, 769, 829, 859, 883, 919, 937, 967, 1021, 1063, 1069, 1087, 1123, 1171, 1237, 1249, 1327, 1381, 1429, 1447, 1453, 1471 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-51. See A106856 for more information.

MATHEMATICA

QuadPrimes[1, 1, 13, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A124199 A119869 A106904 * A098413 A174152 A156940

Adjacent sequences:  A106900 A106901 A106902 * A106904 A106905 A106906

KEYWORD

nonn,easy

AUTHOR

T. D. Noe (noe(AT)sspectra.com), May 09 2005

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

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

Last modified February 17 00:09 EST 2012. Contains 205978 sequences.