login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A040038 Primes p such that x^3 = 3 has no solution mod p. 1
7, 13, 19, 31, 37, 43, 79, 97, 109, 127, 139, 157, 163, 181, 199, 211, 223, 229, 241, 277, 283, 313, 331, 337, 349, 373, 379, 397, 409, 421, 433, 457, 463, 487, 541, 571, 601, 607, 631, 673, 691, 709, 733, 739 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Primes of the form 7x^2+3xy+9y^2, whose discriminant is -243. - T. D. Noe (noe(AT)sspectra.com), May 17 2005

CROSSREFS

Sequence in context: A040079 A038160 A106870 * A081765 A091180 A053458

Adjacent sequences:  A040035 A040036 A040037 * A040039 A040040 A040041

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 14:47 EST 2012. Contains 205623 sequences.