A251798 - OEIS

%I #4 Dec 09 2014 07:36:47

%S 187000,27291608,3934266515,594938582014,90717637876583,

%T 13902663302194715,2134102396738819286,327882361916540095426,

%U 50392001598117407333828,7746165276288696623011479

%N Number of (n+1)X(5+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01

%C Column 5 of A251801

%H R. H. Hardin, <a href="/A251798/b251798.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..2..0..1..3..2....0..0..3..1..1..1....2..2..2..2..2..3....0..2..2..2..2..3

%e ..2..0..2..2..0..3....2..3..0..2..2..3....0..0..1..2..2..3....0..0..0..0..3..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 09 2014