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A183497 Half the number of nX4 0..2 arrays with no element equal to the sum mod 3 of its horizontal and vertical neighbors 1

%I #5 Mar 31 2012 12:35:52

%S 8,128,2088,33057,524288,8388608,134226432,2147483648,34360795152,

%T 549755813888,8796095152128,140737488355328,2251799813685248,

%U 36028801316028672,576460752842391552,9223372036854775808

%N Half the number of nX4 0..2 arrays with no element equal to the sum mod 3 of its horizontal and vertical neighbors

%C Column 4 of A183501

%H R. H. Hardin, <a href="/A183497/b183497.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 3X4

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 05 2011

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Last modified July 18 07:53 EDT 2024. Contains 374377 sequences. (Running on oeis4.)