%I A118067
%S A118067 0,0,0,16,0,0,104,792,1120,6096,21344,114496,257728
%N A118067 Number of knight tours on a 3 X k chessboard.
%C A118067 1. Jelliss computes the number of tour diagrams (which is equal to half 
               the number of tours). 2. Sequence A079137 computes the number of 
               tour DIAGRAMS for a 4xK board (again, equal to half the number of 
               tours). 3. Kraitchik (1942) incorrectly reports 376 tour diagrams 
               for the 3x8 case; the correct number is 396 (i.e. 792 tours); [cf. 
               Rose, Jelliss]
%D A118067 Kraitchik, M., Mathematical Recreations. New York: W. W. Norton, pp. 
               264-5, 1942.
%H A118067 G. Jelliss, <a href="http://home.freeuk.net/ktn/3a.htm">Open Knight's 
               Tours of Three-Rank Boards</a>
%H A118067 C. Rose, <a href="http://www.tri.org.au/knightframe.html">The Distribution 
               of the Knight</a>.
%H A118067 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               KnightsTour.html">Knight's Tours</a> - from MathWorld
%t A118067 Mathematica notebook available at: http://www.tri.org.au/knightframe.html
%Y A118067 Cf. A079137.
%Y A118067 A158074 [From Eric W. Weisstein (eric(AT)weisstein.com), Mar 13 2009]
%Y A118067 Sequence in context: A023919 A008433 A010111 this_sequence A037217 A109075 
               A007791
%Y A118067 Adjacent sequences: A118064 A118065 A118066 this_sequence A118068 A118069 
               A118070
%K A118067 nonn
%O A118067 1,4
%A A118067 Colin Rose (colin(AT)tri.org.au), May 11 2006
%E A118067 a(13) from Eric W. Weisstein (eric(AT)weisstein.com), Mar 13 2009