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A235830 Number of (n+1)X(3+1) 0..2 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise 1

%I

%S 3459,112146,3294824,87276535,2183863895,51823058334,1185755777410,

%T 26334832022372,572263357672413,12229158329776181,258153994196342883,

%U 5400693894523672170,112258618931005108819,2322750011465102542819

%N Number of (n+1)X(3+1) 0..2 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise

%C Column 3 of A235833

%H R. H. Hardin, <a href="/A235830/b235830.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 16 2014

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Last modified May 19 06:38 EDT 2019. Contains 323386 sequences. (Running on oeis4.)