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A250505 Number of (n+2)X(1+2) 0..2 arrays with nondecreasing medians of every three consecutive values in every row and column 1

%I #5 Nov 24 2014 10:29:34

%S 19683,300763,4251528,59776471,729000000,8316073576,92959677000,

%T 992518734375,10209839323384,102970461234311,1017227998469411,

%U 9854850385971136,94155389995652504,889028362923875000

%N Number of (n+2)X(1+2) 0..2 arrays with nondecreasing medians of every three consecutive values in every row and column

%C Column 1 of A250507

%H R. H. Hardin, <a href="/A250505/b250505.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 24 2014

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Last modified April 19 03:27 EDT 2024. Contains 371782 sequences. (Running on oeis4.)