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(2n+1,3,9) difference families over Z_{2n+1}.
0

%I #4 Mar 30 2012 16:45:52

%S 1,12,108,2593,225900

%N (2n+1,3,9) difference families over Z_{2n+1}.

%D CRC Handbook of Combinatorial Designs, 1996, p. 285.

%K nonn,hard

%O 2,2

%A _N. J. A. Sloane_.