%I A079137
%S A079137 0,0,8,0,82,744,6378,31088,189688,1213112,6683852,36486328,
%T A079137 201282470,1083585304,5706117458,29819231288,154430502724,
%U A079137 790787799376,4014945695196,20241304810488,101336136490228
%N A079137 Number of knights tour diagrams on a 4 X k chessboard.
%D A079137 Kraitchik, M. Mathematical Recreations. New York: W.W. Norton, p. 263, 
               1942.
%H A079137 Author?, <a href="http://www.tri.org.au/knightframe.html">Knights tours</
               a>
%H A079137 George Jellis, <a href="http://home.freeuk.net/ktn/4a.htm">Knights tour 
               diagrams</a>
%H A079137 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               KnightsTour.html">Knight's Tour</a>
%Y A079137 See A079312 for 4 times these numbers, A123935 for twice these numbers, 
               A123936 for these numbers halved.
%Y A079137 Sequence in context: A137528 A167318 A067817 this_sequence A121770 A013376 
               A013456
%Y A079137 Adjacent sequences: A079134 A079135 A079136 this_sequence A079138 A079139 
               A079140
%K A079137 nonn
%O A079137 1,3
%A A079137 Eric Weisstein (eric(AT)weisstein.com), Dec 28, 2002
%E A079137 More terms from Andre Poenitz [Andr\'{e} P\"{o}nitz] (poenitz(AT)htwm.de), 
               Jun 11 2003
%E A079137 Edited by N. J. A. Sloane (njas(AT)research.att.com), Oct 30 2006, following 
               suggestions from Colin Rose.