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A223661 Number of nX3 0..3 arrays with row sums unimodal and column sums inverted unimodal 1

%I

%S 50,3060,141046,5285887,169756788,4836834467,125226945708,

%T 2997363216275,67192414310968,1424909830742272,28811928773038893,

%U 559031955620162864,10462533894185251783,189688734342719058204,3343610975591843927435

%N Number of nX3 0..3 arrays with row sums unimodal and column sums inverted unimodal

%C Column 3 of A223663

%H R. H. Hardin, <a href="/A223661/b223661.txt">Table of n, a(n) for n = 1..24</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 25 2013

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Last modified June 28 19:10 EDT 2022. Contains 354907 sequences. (Running on oeis4.)