A237910 - OEIS

A237910

Number of (n+1)X(6+1) 0..3 arrays with the maximum minus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

%I #4 Feb 15 2014 13:58:40

%S 4438816,490622010,54765533116,7708485009320,1097530057048636,

%T 164693713939861498,24814772194230228832,3827934718806779430690,

%U 566886991427246017135272,86509552019316266540555658

%N Number of (n+1)X(6+1) 0..3 arrays with the maximum minus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

%C Column 6 of A237911

%H R. H. Hardin, <a href="/A237910/b237910.txt">Table of n, a(n) for n = 1..23</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 15 2014