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A200777 T(n,k)=Number of nXk 0..2 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other 9

%I #5 Mar 31 2012 12:36:40

%S 3,3,3,2,5,2,7,5,5,7,9,20,13,20,9,6,37,31,31,37,6,22,31,77,342,77,31,

%T 22,30,144,217,1368,1368,217,144,30,20,273,553,1806,7725,1806,553,273,

%U 20,75,218,1438,18801,13422,13422,18801,1438,218,75,105,1054,3849,66784,194535

%N T(n,k)=Number of nXk 0..2 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

%C Table starts

%C ..3....3....2......7........9.........6..........22...........30............20

%C ..3....5....5.....20.......37........31.........144..........273...........218

%C ..2....5...13.....31.......77.......217.........553.........1438..........3849

%C ..7...20...31....342.....1368......1806.......18801........66784.........80772

%C ..9...37...77...1368.....7725.....13422......194535.......980702.......1678693

%C ..6...31..217...1806....13422.....91755......633413......4472626......30905995

%C .22..144..553..18801...194535....633413....17965438....171117355.....537341613

%C .30..273.1438..66784...980702...4472626...171117355...2189118202....9237040535

%C .20..218.3849..80772..1678693..30905995...537341613...9237040535..159001066390

%C .75.1054.9634.855668.24878620.209517906.14614583388.342978784324.2722231659577

%H R. H. Hardin, <a href="/A200777/b200777.txt">Table of n, a(n) for n = 1..178</a>

%e Some solutions for n=6 k=4

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

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

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

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

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

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

%Y Column 1 includes A003409((n+1)/3) and A000984(n/3)

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Nov 22 2011

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Last modified April 20 15:37 EDT 2024. Contains 371844 sequences. (Running on oeis4.)