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%I #4 Nov 30 2014 12:53:10
%S 12001,172457,1452052,12191612,109831980,1007412975,9109822648,
%T 82472830043,753010290232,6882787491176,62720467027182,
%U 570967418260774,5201513774032803,47402120352175424,431881041308586668
%N Number of (n+1)X(4+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements
%C Column 4 of A251167
%H R. H. Hardin, <a href="/A251163/b251163.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..0..0..2..2..3....0..1..1..2..3....2..0..0..1..3....0..2..3..3..3
%e ..0..0..0..1..2....0..0..0..0..2....2..0..0..0..2....2..0..0..0..2
%e ..3..1..0..0..2....2..1..0..0..0....3..3..3..1..0....2..1..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 30 2014
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