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A205612 Number of 5X(n+1) 0..3 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..3 introduced in row major order 1

%I #5 Mar 31 2012 12:37:06

%S 9894,248392,5470216,146904738,3504441046,97605128794,2395790751806,

%T 68866427394682,1717050316673126,50721942341231580,

%U 1277171419921421952,38606034361291323048,978434080407420271360,30151550154670667821138

%N Number of 5X(n+1) 0..3 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..3 introduced in row major order

%C Row 4 of A205609

%H R. H. Hardin, <a href="/A205612/b205612.txt">Table of n, a(n) for n = 1..78</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 29 2012

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Last modified April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)