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Number of nX4 0..4 arrays with every repeated value in every row and column greater than or equal to the previous repeated value.
1

%I #5 Jan 26 2016 12:17:33

%S 615,378225,232608375,134114290153,74223748225767,39628019998736362,

%T 20521193142295758827,10349487304333681128069,

%U 5100109128493173791160887,2462335083143368720711957677,1167299758811224888022222919608

%N Number of nX4 0..4 arrays with every repeated value in every row and column greater than or equal to the previous repeated value.

%C Column 4 of A268103.

%H R. H. Hardin, <a href="/A268102/b268102.txt">Table of n, a(n) for n = 1..16</a>

%e Some solutions for n=5

%e ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

%e ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

%e ..0..0..0..3....0..0..0..4....0..0..0..0....0..0..0..4....0..0..0..4

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

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

%Y Cf. A268103.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 26 2016