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A197536 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,0 for x=0,1,2,3,4 1

%I #5 Mar 31 2012 12:36:30

%S 25,361,14085,423085,14056707,454280983,14991391782,493785636151,

%T 16343961543732,541269402906501,17943273862788427,595019891173209941,

%U 19736497896904338854,654726724059190203302,21721092108797190824889

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

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

%C Column 7 of A197537

%H R. H. Hardin, <a href="/A197536/b197536.txt">Table of n, a(n) for n = 1..156</a>

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 16 2011

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Last modified April 19 17:49 EDT 2024. Contains 371797 sequences. (Running on oeis4.)