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%I #6 Jan 27 2022 22:52:30
%S 631765770,7568125133206,93579182156013156,1164234701633948131822,
%T 14502622693639768776131804,180705599017375127320670453920,
%U 2251767738908429892914683045411296
%N Number of (n+1) X (7+1) 0..3 arrays with every 2 X 2 subblock summing to 4, 5, 6, 7 or 8.
%C Column 7 of A251499.
%H R. H. Hardin, <a href="/A251498/b251498.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=1
%e ..0..0..0..0..1..3..0..0....0..0..0..0..3..1..2..3....0..0..0..0..1..2..1..2
%e ..1..3..2..2..1..0..3..2....2..2..2..2..1..1..0..1....3..3..2..2..3..1..2..2
%Y Cf. A251499.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 03 2014
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