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A196433 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,1,0,3,4 for x=0,1,2,3,4 1

%I #5 Mar 31 2012 12:36:26

%S 6,41,213,1283,7358,42604,246463,1427278,8257394,47782109,276548288,

%T 1600318316,9261110693,53594650946,310152403800,1794861048704,

%U 10386914552975,60109320907593,347854219621911,2013041621414557

%N Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,1,0,3,4 for x=0,1,2,3,4

%C Every 0 is next to 0 2's, every 1 is next to 1 1's, every 2 is next to 2 0's, every 3 is next to 3 3's, every 4 is next to 4 4's

%C Column 5 of A196436

%H R. H. Hardin, <a href="/A196433/b196433.txt">Table of n, a(n) for n = 1..200</a>

%F Empirical: a(n) = 2*a(n-1) +10*a(n-2) +53*a(n-3) +82*a(n-4) +111*a(n-5) -129*a(n-6) -827*a(n-7) -1254*a(n-8) +2309*a(n-9) +2065*a(n-10) -3149*a(n-11) -3500*a(n-12) +4105*a(n-13) +5856*a(n-14) -8008*a(n-15) +1008*a(n-16) +5189*a(n-17) -1830*a(n-18) -2683*a(n-19) +2403*a(n-20) +8398*a(n-21) -10099*a(n-22) +2582*a(n-23) -6932*a(n-24) +4579*a(n-25) -1024*a(n-26) +641*a(n-27) -588*a(n-28) +234*a(n-29) -402*a(n-30) +159*a(n-31) -79*a(n-32) +60*a(n-33) -5*a(n-34) +3*a(n-35) -a(n-36)

%e Some solutions for n=4

%e ..0..0..1..1..0....1..1..0..0..0....1..1..0..1..0....0..0..0..1..1

%e ..1..0..0..0..0....0..0..0..1..0....0..0..0..1..0....0..1..1..0..0

%e ..1..0..0..1..1....0..0..0..1..0....1..1..0..0..1....0..0..0..0..0

%e ..0..0..0..0..0....1..1..0..0..0....0..0..0..0..1....1..1..0..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 02 2011

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