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A204286 Number of (n+2)X4 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..3 introduced in row major order 1

%I

%S 9747,190347,4225471,69321821,1350148902,27980729421,524910976410,

%T 10254308165044,204323923920303,3952888500512569,77312665141597838,

%U 1521497665634852978,29682765725895741308,580820702897175020144

%N Number of (n+2)X4 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..3 introduced in row major order

%C Column 2 of A204289

%H R. H. Hardin, <a href="/A204286/b204286.txt">Table of n, a(n) for n = 1..171</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 13 2012

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Last modified January 22 10:40 EST 2021. Contains 340362 sequences. (Running on oeis4.)