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%I #10 Mar 15 2022 16:17:35
%S 97,1873,2161,3457,6577,6673,6961,7297,7873,10273,12721,13537,13681,
%T 13729,15601,15649,16033,16561,16657,21121,22129
%N 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.
%D Ulrich Tamm, Spliting of cyclic groups and perfect shift codes. Universitat Bielefeld Techreport. 1996.
%H Ulrich Tamm, <a href="http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.57.4508">On Perfect 3- and 4-Shift N-Designs</a>, 1996.
%K nonn,more
%O 1,1
%A _Ctibor O. Zizka_, Jul 05 2009
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