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A204226 Number of (n+1)X5 0..2 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards 1

%I

%S 11100,312001,8183170,129062037,2019310610,21958547501,239090847020,

%T 1998393334223,16732354210738,114864924928762,789227515822757,

%U 4651328406696920,27416959362534398,143142975020535966

%N Number of (n+1)X5 0..2 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards

%C Column 4 of A204230

%H R. H. Hardin, <a href="/A204226/b204226.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 13 2012

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Last modified September 18 01:39 EDT 2021. Contains 347504 sequences. (Running on oeis4.)