|
|
A106905
|
|
Primes of the form 2x^2+2xy+7y^2, with x and y nonnegative.
|
|
2
|
|
|
2, 7, 11, 19, 31, 47, 67, 71, 83, 151, 223, 227, 239, 271, 307, 359, 379, 383, 431, 463, 479, 487, 499, 587, 619, 631, 643, 683, 691, 739, 743, 839, 863, 947, 967, 983, 1019, 1051, 1087, 1151, 1163, 1259, 1279, 1307, 1319, 1367, 1399, 1423, 1451, 1471
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
Discriminant=-52.
|
|
LINKS
|
|
|
MATHEMATICA
|
QuadPrimes2[2, 2, 7, 10000] (* see A106856 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|