|
%I #9 Jan 11 2013 16:41:15
%S 0,0,0,0,0,0,0,4,9,23,42,70,105,154,226,326
%N Toroidal crossing number of complete graph.
%D Gardner, M. Crossing Numbers. Ch. 11 in Knotted Doughnuts and Other Mathematical Entertainments. New York: W. H. Freeman, 1986.
%D Guy, R. K.; Jenkyns, T.; and Schaer, J. ``Toroidal Crossing Number of Complete Graph.'' J. Comb. Th. 4, 376-390, 1968.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ToroidalCrossingNumber.html">Toroidal Crossing Number.</a>
%e a(7) = 0 and a(8) = 4.
%K nonn,nice,more
%O 1,8
%A _Eric W. Weisstein_
|
