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A206167 Number of (n+1)X7 0..3 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..3 introduced in row major order 1

%I #5 Mar 31 2012 12:37:10

%S 385465,38016046,13703317686,1361622567126,490998144726398,

%T 48801583349072774,17594902146494956438,1749161667350452565814,

%U 630514365621711332095246,62694035569411089869428342

%N Number of (n+1)X7 0..3 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..3 introduced in row major order

%C Column 6 of A206169

%H R. H. Hardin, <a href="/A206167/b206167.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 04 2012

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Last modified April 24 16:34 EDT 2024. Contains 371961 sequences. (Running on oeis4.)