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%I #12 Mar 30 2012 17:28:42
%S 8,28,100,360,1300,4700,17000,61500,222500,805000,2912500,10537500,
%T 38125000,137937500,499062500,1805625000,6532812500,23635937500,
%U 85515625000,309398437500,1119414062500,4050078125000,14653320312500
%N Number of zig-zag paths from top to bottom of a rectangle of width 9 with 2n rows whose color is that of the top right corner.
%H Joseph Myers, <a href="http://www.polyomino.org.uk/publications/2008/bmo1-2009-q1.pdf">BMO 2008--2009 Round 1 Problem 1---Generalisation</a>
%F Empirical G.f.: x*(8-12*x)/(1-5*x+5*x^2). - Colin Barker, Jan 04 2012
%Y A153362, A153363, A153364, A153366, A153367
%K nonn,easy
%O 1,1
%A _Joseph Myers_, Dec 24 2008
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