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%I #10 Feb 17 2024 16:13:32
%S 17,1172,36987,4405097,183010307,26345532486,1202086792105,
%T 180821359299832,8463651301168857,1290846776123480411,
%U 61103325028133094620,9391211217321900719984,447723422606405342204055
%N Number of n X 7 0..2 arrays with no more than floor(n*7/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
%H R. H. Hardin, <a href="/A222985/b222985.txt">Table of n, a(n) for n = 1..49</a>
%e Some solutions for n=3:
%e ..0..1..0..1..1..1..1....0..0..0..0..0..1..1....0..1..0..2..2..2..2
%e ..1..1..0..1..1..1..1....0..0..0..0..0..1..1....2..0..2..2..2..2..2
%e ..1..1..2..1..1..1..1....0..0..0..1..0..0..1....2..1..2..2..2..2..2
%Y Column 7 of A222986.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 11 2013
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