A254889 - OEIS

%I #4 Feb 10 2015 08:07:37

%S 9560,35296,171400,822072,2580056,8115610,23589212,59995430,145387986,

%T 331801795,719425086,1522572859,3138860414,6329390631,12570672314,

%U 24624380444,47807796436,92338992457,177468932212,339829018669

%N Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically

%C Column 3 of A254894

%H R. H. Hardin, <a href="/A254889/b254889.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 10 2015