A251490 - OEIS

%I #4 Dec 03 2014 10:11:00

%S 2319053056,84982973330688,3111780313414886566,

%T 113935706529820385852096,4171660889647765001349774656,

%U 152741708226257877188571836140832,5592502682614387617928036405017785714

%N Number of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements

%C Column 7 of A251491

%H R. H. Hardin, <a href="/A251490/b251490.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 03 2014