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A237573 Number of (n+1)X(5+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.

%I A237573 #6 Jul 23 2025 10:19:14
%S A237573 769680,54395184,4093774632,313460630304,23898935623162,
%T A237573 1807232491974520,138024943528283880,10448941120238123892,
%U A237573 797725060871305356158,60393893110722967036808,4610831174869673938780096
%N A237573 Number of (n+1)X(5+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
%C A237573 Column 5 of A237574
%H A237573 R. H. Hardin, <a href="/A237573/b237573.txt">Table of n, a(n) for n = 1..25</a>
%e A237573 Some solutions for n=1
%e A237573 ..0..0..3..3..0..1....0..2..0..0..0..1....0..2..3..3..3..3....0..0..2..0..0..0
%e A237573 ..2..2..3..2..3..1....0..1..1..1..0..1....2..3..1..0..0..1....2..2..1..1..2..3
%K A237573 nonn
%O A237573 1,1
%A A237573 _R. H. Hardin_, Feb 09 2014