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An absolute lower bound on the number of components in perfect systems of difference sets (PSDS).
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%I #4 Oct 27 2018 00:21:06

%S 1,3,5,6,8,10,12,13,15,17,18

%N An absolute lower bound on the number of components in perfect systems of difference sets (PSDS).

%D Abrham, J., and A. Kotzig. "Minimizing the number of components in perfect systems of difference sets." Congr. Numerantium, 47 (1985): 7-17. See Table 1, ceiling (h(c)).

%K nonn,more

%O 1,2

%A _N. J. A. Sloane_, Oct 27 2018