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A185773 Number of (n+1)X4 0..2 arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum 1

%I #5 Mar 31 2012 12:36:03

%S 3844,89118,2046098,48744342,1154712762,27239862108,641595944400,

%T 15156754839024,357869357090800,8446854770875602,199334639825139922,

%U 4705555692884330894,111074885127703334276,2621814014876365014966

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

%C Column 3 of A185777

%H R. H. Hardin, <a href="/A185773/b185773.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 3X4

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 03 2011

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Last modified September 9 11:20 EDT 2024. Contains 375764 sequences. (Running on oeis4.)