A250912 - OEIS

%I #6 May 25 2024 23:38:12

%S 21553018,72721157625,245114118899485,826125782084148708,

%T 2784331051704024117237,9384142308556191112974969,

%U 31627738616791159166366474706,106596185653227343496197522538691

%N Number of (n+1) X (7+1) 0..2 arrays with no 2 X 2 subblock having its maximum diagonal element less than its minimum antidiagonal element.

%C Column 7 of A250913.

%H R. H. Hardin, <a href="/A250912/b250912.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%Y Cf. A250913.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 28 2014