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.

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.

Links

Table of n, a(n) for n=1..21.

Ulrich Tamm, On Perfect 3- and 4-Shift N-Designs, 1996.

Crossrefs

Sequence in context: A226082 A092272 A233433 * A241968 A020538 A359639

Adjacent sequences: A162539 A162540 A162541 * A162543 A162544 A162545

Keyword

nonn,more

Author

Ctibor O. Zizka, Jul 05 2009

Status

approved