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%I
%S 1820,13588,101644,820524,6622988,54865696,453172200,3781440536,
%T 31469076952,263046916084,2194845360332,18351617350708,
%U 153277905148612,1281532280178872,10708142862585556,89521470426434732,748155393971878436
%N Number of (n+1) X (2+1) 0..7 arrays with every 2 X 2 subblock having the sum of the squares of the edge differences equal to 26.
%C Column 2 of A233724.
%H R. H. Hardin, <a href="/A233719/b233719.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A233719/a233719.txt">Empirical recurrence of order 90</a>
%F Empirical recurrence of order 90 (see link above).
%e Some solutions for n=3:
%e ..6..6..2....2..2..2....1..4..1....3..5..3....5..4..4....5..2..5....3..1..4
%e ..2..5..2....1..5..1....1..5..1....5..2..0....1..1..5....5..1..5....6..4..2
%e ..4..7..4....4..5..2....2..5..2....3..5..2....5..2..5....4..4..4....4..7..4
%e ..2..5..2....4..1..2....6..5..1....0..2..0....5..1..1....0..3..0....6..4..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 15 2013
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