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A240257 Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4 1

%I

%S 16,102,707,5484,43200,343959,2750576,22038291,176729972,1417804827,

%T 11376450010,91293254853,732641545797,5879698617773,47187185316348,

%U 378700529124397,3039269539041872,24391768139474983,195757199474858916

%N Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4

%C Column 3 of A240260

%H R. H. Hardin, <a href="/A240257/b240257.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 03 2014

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Last modified July 4 14:29 EDT 2020. Contains 335448 sequences. (Running on oeis4.)