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%I #13 Feb 02 2020 21:33:25
%S 1,6,12,30,50
%N Covering numbers C(n,6,5) (next term is <= 100).
%D CRC Handbook of Combinatorial Designs, 1996, p. 263.
%H D. Gordon, <a href="http://www.dmgordon.org/cover">La Jolla Repository of Coverings</a>
%H K. J. Nurmela and Patric R. J. Östergård, <a href="http://www.tcs.hut.fi/old/papers/tp1.ps.Z">New coverings of t-sets with (t+1)-sets</a>, J. Combinat. Designs, 7 (1999), 217-226.
%H K. J. Nurmela and Patric R. J. Östergård, <a href="http://www.tcs.hut.fi/old/papers/table3.html">New coverings of t-sets with (t+1)-sets (appendix)</a>, J. Combinat. Designs, 7 (1999), 217-226.
%H <a href="/index/Cor#covnum">Index entries for covering numbers</a>
%Y A column of A066010.
%K nonn,hard
%O 6,2
%A _N. J. A. Sloane_
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