A253343 - OEIS

%I #5 Dec 30 2014 14:37:22

%S 16,173,4800,305872,44555528,15101198444,11626813328444,

%T 20721971614675948,84309722535540935020,790037357585204417117612,

%U 16954849455945229046581221580,836098119050722296202025294716588

%N Number of (n+1)X(n+1) 0..1 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

%C Diagonal of A253350

%H R. H. Hardin, <a href="/A253343/b253343.txt">Table of n, a(n) for n = 1..15</a>

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 30 2014