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A223780 Number of nX5 0..1 arrays with row sums unimodal and column sums inverted unimodal 1

%I #4 Mar 27 2013 06:08:59

%S 16,418,8940,170596,2953268,47578884,723952524,10511594736,

%T 147010714764,1991930366642,26287414292840,339219557133945,

%U 4293634757761535,53448756094555559,655687863052989235,7941160613884038234

%N Number of nX5 0..1 arrays with row sums unimodal and column sums inverted unimodal

%C Column 5 of A223782

%H R. H. Hardin, <a href="/A223780/b223780.txt">Table of n, a(n) for n = 1..18</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 27 2013

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Last modified April 24 08:59 EDT 2024. Contains 371935 sequences. (Running on oeis4.)