|
Search: id:A139987
|
|
|
| A139987 |
|
Primes of the form 7x^2+120y^2. |
|
+0
1
|
|
| 7, 127, 463, 487, 823, 967, 1087, 1303, 1327, 1423, 1663, 2143, 2503, 2647, 2767, 3343, 3607, 3823, 3847, 3943, 4327, 4447, 4663, 4783, 5023, 5167, 5503, 5527, 5623, 6007, 6343, 6367, 6703, 6967, 7207, 7687, 8527, 8647, 8863, 8887, 10567
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
Discriminant=-3360. See A139827 for more information.
|
|
FORMULA
|
Except for 7, the primes are congruent to {127, 247, 463, 487, 583, 823} (mod 840).
|
|
MATHEMATICA
|
QuadPrimes[7, 0, 120, 10000] (* see A106856 *)
|
|
CROSSREFS
|
Sequence in context: A074487 A113162 A084940 this_sequence A061744 A053716 A088550
Adjacent sequences: A139984 A139985 A139986 this_sequence A139988 A139989 A139990
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
T. D. Noe (noe(AT)sspectra.com), May 02 2008
|
|
|
Search completed in 0.002 seconds
|
