%I
%S 0,2,3,5,6,12,14,17
%N The length of a shortest radius2 sequence on n symbols.
%D J. W. Jaromczyk and Z. Lonc, "Sequences of radius k: how to fetch many huge objects into small memory for pairwise computations", Algorithms and Computation, Lecture Notes in Comput. Sci., vol. 3341, Springer, Berlin, 2004, pp. 594605.
%K nonn
%O 1,2
%A Yeow Meng Chee (ymchee(AT)ntu.edu.sg), Jul 11 2010
