Search: id:A006076
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%I A006076 M0884
%S A006076 1,1,2,3,8,23,3,1,1,2,100,1,20,1,63,1,29,2551
%N A006076 Sequence A006075 gives minimal number of knights needed to cover an n 
               X n board. This sequence gives number of inequivalent solutions using 
               A006075(n) knights.
%D A006076 David C. Fisher, On the N X N Knight Cover Problem, Ars Combinatoria 
               69 (2003), 255-274.
%D A006076 M. Gardner, Mathematical Magic Show. Random House, NY, 1978, p. 194.
%D A006076 Bernard Lemaire, Knights Covers on N X N Chessboards, J.Recreational 
               Mathematics, Vol. 31-2, pp. 87-99, 2003.
%D A006076 Frank Rubin, Improved knight coverings, Ars Combinatoria 69 (2003), 185-196.
%D A006076 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%H A006076 Lee Morgenstern, <a href="http://home.earthlink.net/~morgenstern">Knight 
               Domination</a>
%H A006076 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               KnightsProblem.html">Link to a section of The World of Mathematics.</
               a>
%Y A006076 Cf. A006075 (number of solutions), A098604 (rectangular board). A103315 
               gives the total number of solutions.
%Y A006076 Sequence in context: A089402 A127940 A006796 this_sequence A086628 A032096 
               A120763
%Y A006076 Adjacent sequences: A006073 A006074 A006075 this_sequence A006077 A006078 
               A006079
%K A006076 nonn,hard,nice
%O A006076 1,3
%A A006076 N. J. A. Sloane (njas(AT)research.att.com).
%E A006076 a(11) was found 1n 1973 by Bernard Lemaire. (DELEHAM Philippe, Jan 06 
               2004)
%E A006076 a(13)-a(17) from the Morgenstern web site, Nov 08 2004
%E A006076 a(18) from the Morgenstern web site, Mar 20 2005

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