|
%I #4 Jan 14 2015 07:02:15
%S 12680,60392,214596,554638,1826190,5735723,19727216,63219653,
%T 215108264,694075512,2300636010,7389478710,24092560022,77484299331,
%U 251219943780,810727615448,2627331660592,8506063476792,27597699340414,89556615821316
%N Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically
%C Column 3 of A253820
%H R. H. Hardin, <a href="/A253815/b253815.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..0..0..1..1..0....0..0..0..0..0....0..1..1..0..1....0..0..0..1..0
%e ..1..0..1..0..1....1..0..1..1..0....0..1..1..1..0....1..0..1..1..0
%e ..1..1..1..0..1....0..0..0..0..1....0..1..1..0..1....0..0..0..0..1
%e ..0..1..0..1..1....1..0..0..1..1....0..0..1..1..1....1..0..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 14 2015
| 