|
%I
%S 4823759,45689226,315429190,2336174650,18962117027,135508809479,
%T 1017086083917,7592417722506,56889349938986,423304805355442,
%U 3129226285383207,23392351131337319,174669286581663845
%N Number of (n+2)X7 0..3 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order
%C Column 5 of A204056
%H R. H. Hardin, <a href="/A204053/b204053.txt">Table of n, a(n) for n = 1..29</a>
%e Some solutions for n=3
%e ..0..1..2..1..1..2..2....0..0..1..0..0..1..0....0..1..0..1..1..2..1
%e ..2..0..1..2..1..1..0....1..0..0..1..0..0..0....1..0..1..0..1..1..1
%e ..0..1..0..1..2..1..1....0..1..0..0..1..0..0....0..1..0..1..0..1..1
%e ..1..0..1..0..1..2..1....1..0..1..0..0..1..0....2..0..1..0..1..0..1
%e ..3..1..0..2..0..1..2....0..0..0..1..0..0..1....2..0..0..1..1..3..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 09 2012
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