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A224121 Number of nX3 0..3 arrays with row sums nondecreasing and column sums unimodal 1

%I

%S 50,1747,47059,1070499,21632718,400993828,6962188526,114852977638,

%T 1818933416948,27867476494858,415428832366407,6052984236034862,

%U 86509041863415952,1216196228905636823,16857689384122403297

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

%C Column 3 of A224123

%H R. H. Hardin, <a href="/A224121/b224121.txt">Table of n, a(n) for n = 1..22</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 31 2013

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Last modified May 27 16:48 EDT 2022. Contains 354110 sequences. (Running on oeis4.)