A237745 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with the (lower) medians of each row equal and of each column equal

68, 290, 290, 1412, 7552, 1412, 5708, 39842, 39842, 5708, 25832, 938176, 608372, 938176, 25832, 103538, 5871266, 12331252, 12331252, 5871266, 103538, 447332, 119520256, 213982232, 1727378144, 213982232, 119520256, 447332, 1790084

Offset

1,1

Comments

Table starts

.......68...........290............1412...............5708..............25832

......290..........7552...........39842.............938176............5871266

.....1412.........39842..........608372...........12331252..........213982232

.....5708........938176........12331252.........1727378144........27738515408

....25832.......5871266.......213982232........27738515408......1405996950752

...103538.....119520256......3813889762......3276185440256....135526127886578

...447332.....847692866.....67892256692.....62580997848692...8101710521927192

..1790084...15310585024...1145451277532...6267389933189344.662870061789157280

..7524728..118493356610..20262099994952.137204103504548368

.30101684.1955650250944.333280098908492

Links

R. H. Hardin, Table of n, a(n) for n = 1..83

Example

Some solutions for n=2 k=4
..0..0..0..0..0..1....0..0..0..0..1..0....0..0..0..0..0..0....0..0..0..0..0..1
..0..0..0..0..1..0....0..1..0..0..0..1....1..0..1..1..0..0....1..1..0..0..0..1
..0..1..0..0..0..1....0..0..1..0..1..1....0..0..1..0..0..0....0..0..1..0..1..0
..0..0..0..1..1..0....0..0..1..0..0..0....0..0..0..1..0..1....0..1..1..0..0..0

Crossrefs

Sequence in context: A292344 A189810 A200198 * A237740 A290173 A281770

Adjacent sequences: A237742 A237743 A237744 * A237746 A237747 A237748

Keyword

nonn,tabl

Author

R. H. Hardin, Feb 12 2014

Status

approved