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A209524 Number of nX5 0..7 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..7 introduced in row major order.

%I A209524 #7 Jul 22 2025 21:47:59
%S A209524 52,10677,7700397,9700576474,16484968944748,31813625228165210,
%T A209524 64398780661554524050,132601740316897661044124,
%U A209524 274696694967972306834304958,570286527927816153297022623334
%N A209524 Number of nX5 0..7 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..7 introduced in row major order.
%C A209524 Column 5 of A209527
%H A209524 R. H. Hardin, <a href="/A209524/b209524.txt">Table of n, a(n) for n = 1..210</a>
%e A209524 Some solutions for n=5
%e A209524 ..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..1..0..1..0
%e A209524 ..1..2..1..2..1....1..2..1..2..1....1..2..1..2..3....0..2..2..0..2
%e A209524 ..1..0..0..0..2....0..0..0..1..0....1..3..3..1..2....2..1..3..3..2
%e A209524 ..3..1..4..1..1....3..1..2..2..1....4..4..5..1..4....4..4..1..0..0
%e A209524 ..0..0..4..5..0....3..2..0..3..2....5..6..6..5..1....0..2..1..5..1
%K A209524 nonn
%O A209524 1,1
%A A209524 _R. H. Hardin_ Mar 10 2012