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 A203655 1/25 the number of (n+1)X8 0..4 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements 1

%I

%S 4782969,3295578857,2843024036697,2669260624372937,

%T 2592476403527692089,2554890395768832271017,2533535485859974387986201,

%U 2519204090844384026262668425,2507880611006135260374020018937

%N 1/25 the number of (n+1)X8 0..4 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements

%C Column 7 of A203656

%H R. H. Hardin, <a href="/A203655/b203655.txt">Table of n, a(n) for n = 1..22</a>

%e Some solutions for n=4

%e ..1..2..1..0..3..1..0..4....3..4..4..2..4..4..0..1....0..4..0..4..3..4..3..0

%e ..0..1..2..1..0..3..1..0....3..3..4..4..0..4..4..0....2..0..0..0..4..0..4..3

%e ..1..4..1..2..1..0..3..1....2..3..3..4..4..4..4..4....3..2..0..0..0..3..0..4

%e ..2..1..3..1..3..1..0..3....0..2..3..3..4..2..4..4....4..3..2..0..4..0..0..0

%e ..1..1..1..3..3..3..1..0....0..0..2..3..3..4..4..2....3..4..3..2..0..1..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 04 2012

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Last modified May 21 11:28 EDT 2022. Contains 353908 sequences. (Running on oeis4.)