A200970 - OEIS

%I #5 Mar 31 2012 12:36:42

%S 388,37254,3167295,250149820,18714498069,1342587653727,93360032845673,

%T 6335655315992974,421865904772827987,27660730981017838471,

%U 1790599737428642496028,114654496418709581646953

%N Number of nX4 0..6 arrays with every row and column running average nondecreasing rightwards and downwards

%C Column 4 of A200974

%H R. H. Hardin, <a href="/A200970/b200970.txt">Table of n, a(n) for n = 1..13</a>

%e Some solutions for n=3

%e ..0..0..1..5....0..0..0..1....0..0..0..1....0..0..0..1....0..0..2..4

%e ..0..1..1..5....0..1..2..6....0..1..2..5....0..0..3..5....0..0..2..4

%e ..0..3..3..6....2..6..4..5....1..2..3..3....0..5..3..4....0..0..3..6

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 25 2011