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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 (list; graph; refs; listen; history; text; internal format)
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

CROSSREFS

Sequence in context: A226082 A092272 A233433 * A241968 A020538 A075665

Adjacent sequences:  A162539 A162540 A162541 * A162543 A162544 A162545

KEYWORD

nonn

AUTHOR

Ctibor O. Zizka, Jul 05 2009

STATUS

approved

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Last modified November 14 04:40 EST 2019. Contains 329108 sequences. (Running on oeis4.)