|
|
A139836
|
|
Primes of the form 10x^2+10xy+11y^2.
|
|
1
|
|
|
11, 31, 71, 79, 131, 139, 199, 211, 311, 379, 419, 431, 439, 479, 499, 571, 619, 691, 719, 751, 811, 839, 911, 991, 1031, 1051, 1091, 1151, 1231, 1319, 1399, 1439, 1451, 1459, 1499, 1559, 1571, 1831, 1931, 1979, 1999, 2011, 2111, 2131, 2179, 2239
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
Discriminant=-340. See A139827 for more information.
|
|
LINKS
|
|
|
FORMULA
|
The primes are congruent to {11, 31, 39, 71, 79, 91, 99, 131, 139, 159, 199, 211, 231, 279, 299, 311} (mod 340).
|
|
MATHEMATICA
|
QuadPrimes2[10, -10, 11, 10000] (* see A106856 *)
|
|
PROG
|
(Magma) [ p: p in PrimesUpTo(3000) | p mod 340 in {11, 31, 39, 71, 79, 91, 99, 131, 139, 159, 199, 211, 231, 279, 299, 311}]; // Vincenzo Librandi, Jul 29 2012
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|