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A224176 Number of 5Xn 0..3 arrays with rows and antidiagonals unimodal and columns nondecreasing 1

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

%S 56,3136,87878,1460836,16625026,143558572,1012166273,6125081331,

%T 32894121939,160366617391,721130521043,3026020511079,11954211905590,

%U 44767125938612,159803658410914,546205629183576,1794213349019225

%N Number of 5Xn 0..3 arrays with rows and antidiagonals unimodal and columns nondecreasing

%C Row 5 of A224173

%H R. H. Hardin, <a href="/A224176/b224176.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A224176/a224176.txt">Empirical polynomial of degree 30</a>

%F Empirical polynomial of degree 30 (see link above)

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 31 2013

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)