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A197097 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,0,0,1 for x=0,1,2,3,4 1

%I #5 Mar 31 2012 12:36:28

%S 13,1439,45843,2253537,105551542,4886330995,227951140324,

%T 10611747125529,494205872758082,23013994189839780,1071725356148151651,

%U 49908553928282027953,2324157974481616112739,108232267483106900191660

%N Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,0,0,1 for x=0,1,2,3,4

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

%C Column 7 of A197098

%H R. H. Hardin, <a href="/A197097/b197097.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions containing all values 0 to 4 for n=4

%e ..0..0..0..2..0..0..0....0..0..0..0..0..2..0....0..0..0..2..0..1..0

%e ..0..1..0..3..0..0..3....3..0..1..0..0..1..0....2..0..0..2..1..4..1

%e ..1..4..1..0..2..3..0....0..1..4..1..1..4..1....2..0..0..0..2..1..0

%e ..0..1..0..0..2..0..0....2..0..1..0..0..1..0....0..0..3..0..0..2..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 10 2011

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)