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Number of nX5 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other
2

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

%S 1,21,140,1095,4919,27000,97341,383172,1188521,3704820,9947816,

%T 27240277,65292069,157646021,349738426,770969390,1585648871,

%U 3256248216,6303135880,12177430692,22459794938,41128002746,72582886199,127586136583

%N Number of nX5 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

%C Column 5 of A200990

%H R. H. Hardin, <a href="/A200987/b200987.txt">Table of n, a(n) for n = 1..32</a>

%e Some solutions for n=3

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

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

%e ..2..2..3..3..4....3..3..3..4..4....3..3..4..4..4....1..3..3..3..4

%K nonn

%O 1,2

%A _R. H. Hardin_ Nov 25 2011