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A222789 Number of nX3 0..3 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order 1

%I

%S 0,4,34,582,3800,92642,589134,15697114,101205850,2768968458,

%T 17982090240,499074464184,3254525287074,91174422158328,

%U 596469391588434,16817976440314170,110319637897696154,3125091350637342914

%N Number of nX3 0..3 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order

%C Column 3 of A222794

%H R. H. Hardin, <a href="/A222789/b222789.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Mar 05 2013

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Last modified June 26 10:23 EDT 2022. Contains 354879 sequences. (Running on oeis4.)