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 A207298 Number of (n+1)X5 0..3 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing 1

%I

%S 84899,33860323,8967460486,1951282415919,308913308209090,

%T 37170163306466234,3574001909699500591,289539293904541783462,

%U 20820957544770844317083,1397930008464657504104231

%N Number of (n+1)X5 0..3 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing

%C Column 4 of A207300

%H R. H. Hardin, <a href="/A207298/b207298.txt">Table of n, a(n) for n = 1..60</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 16 2012

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Last modified May 20 23:05 EDT 2022. Contains 353886 sequences. (Running on oeis4.)