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A223884 Number of nX4 0..2 arrays with row sums unimodal and column sums inverted unimodal 1

%I #4 Mar 28 2013 11:18:34

%S 46,3298,187019,8872648,367614623,13705619321,469700382368,

%T 15028355082420,454196578645090,13083963708689100,361818451966460877,

%U 9660123785787286044,250171942122628486761,6308537121431695167897

%N Number of nX4 0..2 arrays with row sums unimodal and column sums inverted unimodal

%C Column 4 of A223885

%H R. H. Hardin, <a href="/A223884/b223884.txt">Table of n, a(n) for n = 1..15</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 28 2013

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Last modified April 23 08:33 EDT 2024. Contains 371905 sequences. (Running on oeis4.)