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A217547 T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..2 nXk array 6

%I #4 Oct 06 2012 07:17:29

%S 3,3,3,9,3,9,17,9,9,17,37,17,81,17,37,77,37,289,289,37,77,163,77,1369,

%T 1401,1369,77,163,343,163,5929,10213,10213,5929,163,343,723,343,26569,

%U 64473,128051,64473,26569,343,723,1523,723,117649,431241,1342855,1342855

%N T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..2 nXk array

%C Table starts

%C ....3....3........9.........17............37.............77.............163

%C ....3....3........9.........17............37.............77.............163

%C ....9....9.......81........289..........1369...........5929...........26569

%C ...17...17......289.......1401.........10213..........64473..........431241

%C ...37...37.....1369......10213........128051........1342855........15130953

%C ...77...77.....5929......64473.......1342855.......22263471.......404884061

%C ..163..163....26569.....431241......15130953......404884061.....12094757481

%C ..343..343...117649....2824177.....166010145.....7113718205....346695485697

%C ..723..723...522729...18626981....1837220123...126448240507..10077786323603

%C .1523.1523..2319529..122511585...20265096203..2237636413927.291384560664827

%C .3209.3209.10297681..806649933..223831206295.39669951994791

%C .6761.6761.45711121.5309370017.2471187319639

%H R. H. Hardin, <a href="/A217547/b217547.txt">Table of n, a(n) for n = 1..144</a>

%e Some solutions for n=3 k=4

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

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

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

%Y Columns 1 and 2 are A217450

%Y Column 3 is A207854(n-1) = A217450^2

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Oct 06 2012

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Last modified April 24 10:11 EDT 2024. Contains 371935 sequences. (Running on oeis4.)