login
T(n,k)=Number of nXk 0..k arrays with every repeated value in every row and column greater than or equal to the previous repeated value.
5

%I #4 Jan 26 2016 12:18:53

%S 2,9,4,64,81,8,615,4096,729,15,7536,378225,262144,6084,28,112476,

%T 56791296,232608375,15625000,49284,51,1981512,12650850576,

%U 427979206656,134114290153,895841344,386884,92,40265487,3926389806144

%N T(n,k)=Number of nXk 0..k arrays with every repeated value in every row and column greater than or equal to the previous repeated value.

%C Table starts

%C ..2.....9........64............615.................7536................112476

%C ..4....81......4096.........378225.............56791296...........12650850576

%C ..8...729....262144......232608375.........427979206656......1422917069386176

%C .15..6084..15625000...134114290153.....3042807800530752.151823094341278467866

%C .28.49284.895841344.74223748225767.20777755411841736998

%H R. H. Hardin, <a href="/A268103/b268103.txt">Table of n, a(n) for n = 1..48</a>

%F Empirical for column k:

%F k=1: a(n) = 2*a(n-1) +a(n-2) -2*a(n-3) -a(n-4)

%F k=2: [order 15]

%F k=3: [order 40]

%e Some solutions for n=5 k=4

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

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

%e ..0..0..0..1....0..0..0..1....0..0..0..2....0..0..0..3....0..0..0..0

%e ..0..0..0..0....0..0..3..0....0..0..0..4....0..0..1..0....0..0..1..3

%e ..1..1..1..1....0..1..0..4....4..0..1..4....3..4..0..1....4..1..0..4

%Y Column 1 is A029907(n+1).

%Y Column 2 is A268014.

%Y Column 3 is A267994.

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_, Jan 26 2016