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A185927 Number of (n+1)X4 0..3 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace 1

%I #5 Mar 31 2012 12:36:04

%S 45184,5113920,590014464,67954333216,7826768593728,901434253841216,

%T 103822107190857792,11957609765394118112,1377207187583977926400,

%U 158618585953786047231392,18268752901619252768070528

%N Number of (n+1)X4 0..3 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace

%C Column 3 of A185933

%H R. H. Hardin, <a href="/A185927/b185927.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 3X4

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 06 2011

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Last modified May 6 18:59 EDT 2024. Contains 372297 sequences. (Running on oeis4.)