1,2
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)).
Table of n, a(n) for n=1..11.
Sequence in context: A139437 A233746 A299233 * A083042 A082977 A000210
Adjacent sequences: A320994 A320995 A320996 * A320998 A320999 A321000
nonn,more
N. J. A. Sloane, Oct 27 2018
approved
