Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #5 Mar 27 2013 06:07:33
%S 7,53,330,1809,8940,41257,180670,756800,3066706,12093628,46563397,
%T 175879412,653526033,2392564820,8651185991,30941217363,109551653219,
%U 384528798543,1339204256650,4630162104037,15905909415604,54322204287215
%N Number of nX3 0..1 arrays with row sums unimodal and column sums inverted unimodal
%C Column 3 of A223782
%H R. H. Hardin, <a href="/A223778/b223778.txt">Table of n, a(n) for n = 1..116</a>
%e Some solutions for n=3
%e ..1..1..1....1..1..1....1..0..0....1..0..0....1..0..0....1..1..1....0..1..0
%e ..1..1..0....1..0..1....1..1..0....1..1..0....0..0..1....0..1..0....1..0..0
%e ..0..0..1....0..1..1....1..1..0....0..0..1....0..1..0....0..0..1....0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 27 2013