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A011992 (n,3,2) difference families over Z_n. 0

%I

%S 2,0,0,0,0,4,9,0,9,71,0,0,201,0,175,0,0,2939,19543,0,10841,609483

%N (n,3,2) difference families over Z_n.

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

%K nonn,hard

%O 7,1

%A _N. J. A. Sloane_.

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Last modified January 29 07:25 EST 2023. Contains 359915 sequences. (Running on oeis4.)