login
A162542
Primes p such that for the cyclic group Zp of a prime order p there exist a perfect 4-shift code {+-1,+-a,+-a^2,+-b} in Zp.
0
97, 1873, 2161, 3457, 6577, 6673, 6961, 7297, 7873, 10273, 12721, 13537, 13681, 13729, 15601, 15649, 16033, 16561, 16657, 21121, 22129
OFFSET
1,1
REFERENCES
Ulrich Tamm, Spliting of cyclic groups and perfect shift codes. Universitat Bielefeld Techreport. 1996.
CROSSREFS
Sequence in context: A226082 A092272 A233433 * A241968 A020538 A359639
KEYWORD
nonn,more
AUTHOR
Ctibor O. Zizka, Jul 05 2009
STATUS
approved