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A251248 Number of (n+1)X(7+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements.

%I A251248 #6 Jul 23 2025 13:12:36
%S A251248 24095475,91345992921,345878548314469,1309640978922956217,
%T A251248 4958824382557190011939,18776074467676820865893649,
%U A251248 71093648993125363900542904561,269188685349250291174788288004161
%N A251248 Number of (n+1)X(7+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements.
%C A251248 Column 7 of A251249
%H A251248 R. H. Hardin, <a href="/A251248/b251248.txt">Table of n, a(n) for n = 1..210</a>
%e A251248 Some solutions for n=1
%e A251248 ..0..0..0..0..0..2..1..1....0..0..0..0..1..1..2..2....0..0..0..0..1..2..1..1
%e A251248 ..1..0..0..2..1..2..1..2....1..0..1..2..1..2..1..0....0..0..1..1..1..2..2..1
%K A251248 nonn
%O A251248 1,1
%A A251248 _R. H. Hardin_, Dec 01 2014