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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A106977 Primes of the form 4x^2-3xy+6y^2, with x and y nonnegative. 0
7, 109, 139, 181, 241, 277, 439, 457, 463, 547, 613, 631, 643, 661, 673, 691, 811, 919, 937, 1051, 1069, 1093, 1231, 1321, 1327, 1543, 1579, 1657, 1741, 1747, 2053, 2083, 2113, 2269, 2311, 2437, 2503, 2539, 2677, 2731, 2887, 2953, 2971, 3049 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Discriminant=-87. See A106856 for more information.

MATHEMATICA

QuadPrimes[4, -3, 6, 10000] (* see A106856 *)

CROSSREFS

Sequence in context: A033516 A130629 A137648 * A142480 A202515 A096498

Adjacent sequences:  A106974 A106975 A106976 * A106978 A106979 A106980

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 15 21:56 EST 2012. Contains 205860 sequences.