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A204975 Number of nX5 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..2 introduced in row major order 1

%I #6 Feb 22 2020 20:54:24

%S 30,5400,226908,11815256,594430765,30057359681,1519010368414,

%T 76757855124562,3878731054806384,196001179244804717,

%U 9904372451888881080,500490203444826245265,25290888836528806246336,1278005232465153039958786

%N Number of nX5 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..2 introduced in row major order

%C Column 5 of A204978

%H R. H. Hardin, <a href="/A204975/b204975.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 21 2012

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)