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Number of (n+1)X(4+1) 0..3 arrays with the upper median plus the lower median of every 2X2 subblock equal
1

%I #4 Feb 02 2014 07:39:33

%S 26320,762724,22056220,880923796,33233608132,1329345087772,

%T 52079122983140,2070941611511776,81772162000490880,

%U 3243881107548188412,128365789131232332144,5087721950848658181076,201470461451253606169116

%N Number of (n+1)X(4+1) 0..3 arrays with the upper median plus the lower median of every 2X2 subblock equal

%C Column 4 of A237007

%H R. H. Hardin, <a href="/A237003/b237003.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..3..2..0..3..0....0..1..2..1..0....0..1..2..2..1....1..0..3..2..3

%e ..1..3..3..2..3....3..3..2..3..3....3..1..0..0..1....3..2..1..0..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 02 2014