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A222396 Number of nX2 0..2 arrays with exactly floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order 1

%I

%S 0,0,0,9,0,92,0,998,0,11136,0,124864,0,1410976,0,16045476,0,183423824,

%T 0,2106121248,0,24274382400,0,280683965456,0,3254633862912,0,

%U 37830853520448,0,440677391796992,0,5143023783831776,0,60124159059278592

%N Number of nX2 0..2 arrays with exactly floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order

%C Column 2 of A222402

%H R. H. Hardin, <a href="/A222396/b222396.txt">Table of n, a(n) for n = 1..210</a>

%e All solutions for n=4

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

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

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

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

%K nonn

%O 1,4

%A _R. H. Hardin_ Feb 18 2013

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Last modified September 17 22:14 EDT 2021. Contains 347489 sequences. (Running on oeis4.)