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A223924 Number of 7Xn 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing 1

%I #6 Aug 11 2014 22:45:51

%S 36,1296,26494,359344,3588729,28247478,183720802,1022160764,

%T 4994941017,21887522070,87447220301,322906269126,1114442061385,

%U 3628609366226,11233293675288,33279853366178,94865889314403,261354658486111

%N Number of 7Xn 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing

%C Row 7 of A223918

%H R. H. Hardin, <a href="/A223924/b223924.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A223924/a223924.txt">Empirical polynomial of degree 28</a>

%F Empirical polynomial of degree 28 (see link above)

%e Some solutions for n=3

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 29 2013

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Last modified April 16 14:17 EDT 2024. Contains 371740 sequences. (Running on oeis4.)