login
A106988
Primes of the form x^2+xy+23y^2, with x and y nonnegative.
1
23, 29, 43, 53, 79, 107, 113, 127, 179, 191, 211, 233, 263, 277, 337, 347, 373, 389, 443, 491, 547, 599, 641, 653, 659, 673, 701, 751, 757, 809, 883, 907, 911, 919, 953, 991, 1031, 1093, 1171, 1187, 1213, 1283, 1297, 1303, 1327, 1381, 1429, 1439, 1453
OFFSET
1,1
COMMENTS
Discriminant=-91.
LINKS
Vincenzo Librandi and Ray Chandler, Table of n, a(n) for n = 1..10000 [First 1000 terms from Vincenzo Librandi]
N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)
MATHEMATICA
QuadPrimes2[1, 1, 23, 10000] (* see A106856 *)
CROSSREFS
Sequence in context: A085448 A095077 A106989 * A127834 A108111 A085713
KEYWORD
nonn,easy
AUTHOR
T. D. Noe, May 09 2005
STATUS
approved