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A197427 Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,1,1 for x=0,1,2,3,4 1

%I #5 Mar 31 2012 12:36:29

%S 5,71,448,5197,43909,410456,4017895,37566429,351740354,3301443327,

%T 31135760775,294213106126,2771339919971,26068700897789,

%U 245447885397640,2313251869240159,21800440099050007,205343629421991480

%N Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,1,1 for x=0,1,2,3,4

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

%C Column 4 of A197431

%H R. H. Hardin, <a href="/A197427/b197427.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions containing all values 0 to 4 for n=5

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 14 2011

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Last modified May 23 18:59 EDT 2024. Contains 372765 sequences. (Running on oeis4.)