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A197474 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,0,0,0 for x=0,1,2,3,4 1

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

%S 5,98,1300,10934,151748,1265828,16544206,145244408,1830370547,

%T 16537658774,202870487557,1878224690406,22527034080238,

%U 212875475502774,2505004507267645,24087191716817350,278905922435987885

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

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

%C Column 7 of A197475

%H R. H. Hardin, <a href="/A197474/b197474.txt">Table of n, a(n) for n = 1..200</a>

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 15 2011

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Last modified April 19 16:03 EDT 2024. Contains 371794 sequences. (Running on oeis4.)