|
Search: id:A139970
|
|
|
| A139970 |
|
Primes of the form 4x^2+4xy+131y^2. |
|
+0
2
|
|
| 131, 139, 179, 211, 251, 419, 491, 571, 659, 859, 971, 1091, 1171, 1291, 1459, 1499, 1531, 1699, 1811, 1979, 2011, 2131, 2339, 2531, 2539, 2731, 2851, 2939, 3019, 3251, 3259, 3299, 3331, 3371, 3539, 3571, 3691, 3779, 3851, 4091, 4099, 4211
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
Discriminant=-2080. See A139827 for more information.
|
|
FORMULA
|
The primes are congruent to {51, 131, 139, 179, 211, 251, 259, 339, 419, 451, 459, 491} (mod 520).
|
|
MATHEMATICA
|
QuadPrimes[4, -4, 131, 10000] (* see A106856 *)
|
|
CROSSREFS
|
Sequence in context: A084549 A116519 A139646 this_sequence A159256 A039558 A045164
Adjacent sequences: A139967 A139968 A139969 this_sequence A139971 A139972 A139973
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
T. D. Noe (noe(AT)sspectra.com), May 02 2008
|
|
|
Search completed in 0.002 seconds
|
