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A222397 Number of nX3 0..2 arrays with exactly floor(nX3/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order 1

%I #4 Feb 18 2013 08:47:39

%S 0,0,4,35,0,624,900,21634,21224,609872,756664,18326048,23970800,

%T 543783008,781519168,16285754632,25251222240,489217824832,

%U 816430181216,14763821943024,26347993000448,447331602311680,849299259827904

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

%C Column 3 of A222402

%H R. H. Hardin, <a href="/A222397/b222397.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,3

%A _R. H. Hardin_ Feb 18 2013

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Last modified April 24 13:22 EDT 2024. Contains 371954 sequences. (Running on oeis4.)