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Number of (5+1)X(n+1) 0..2 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw
1

%I #4 Dec 30 2014 20:04:25

%S 49284,521009,5829147,70942616,811079978,8802760516,90160819133,

%T 829051547587,7310278949272,57116400940572,433479645978767,

%U 2931863943180400,19425553129121010,116071717678779409

%N Number of (5+1)X(n+1) 0..2 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw

%C Row 5 of A253375

%H R. H. Hardin, <a href="/A253379/b253379.txt">Table of n, a(n) for n = 1..44</a>

%e Some solutions for n=1

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 30 2014