Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A139983
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A139983 Primes of the form 29x^2+18xy+29y^2. +0
2
29, 109, 181, 269, 421, 509, 661, 829, 941, 1021, 1181, 1229, 1381, 1549, 1709, 1741, 1789, 1861, 2029, 2141, 2269, 2309, 2389, 2549, 2621, 2749, 2789, 2909, 3061, 3109, 3181, 3221, 3229, 3301, 3461, 3701, 3821, 3989, 4021, 4421, 4549 (list; graph; listen)
OFFSET

1,1

COMMENT

Discriminant=-3040. See A139827 for more information.

FORMULA

The primes are congruent to {21, 29, 69, 109, 141, 181, 189, 221, 261, 269, 341, 421, 469, 509, 621, 629, 661, 749, 781, 789, 829, 869, 901, 941, 949, 981, 1021, 1029, 1101, 1181, 1229, 1269, 1381, 1389, 1421, 1509, 1541, 1549, 1589, 1629, 1661, 1701, 1709, 1741, 1781, 1789, 1861, 1941, 1989, 2029, 2141, 2149, 2181, 2269, 2301, 2309, 2349, 2389, 2421, 2461, 2469, 2501, 2541, 2549, 2621, 2701, 2749, 2789, 2901, 2909, 2941, 3029} (mod 3040).

MATHEMATICA

Union[QuadPrimes[29, 18, 29, 10000], QuadPrimes[29, -18, 29, 10000]] (* see A106856 *)

CROSSREFS

Sequence in context: A138716 A142194 A139495 this_sequence A157184 A044280 A044661

Adjacent sequences: A139980 A139981 A139982 this_sequence A139984 A139985 A139986

KEYWORD

nonn,easy

AUTHOR

T. D. Noe (noe(AT)sspectra.com), May 02 2008

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


AT&T Labs Research