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A275564 Number of nX7 0..2 arrays with no element equal to any value at offset (-2,0) (-1,2) or (0,-2) and new values introduced in order 0..2. 1

%I

%S 48,2592,3552,23712,138600,867456,5360184,33275880,206892990,

%T 1286374716,7998368250,49754459556,309431155980,1924683955344,

%U 11971565665080,74462297454048,463161757751784,2880875453047152,17919172630925406

%N Number of nX7 0..2 arrays with no element equal to any value at offset (-2,0) (-1,2) or (0,-2) and new values introduced in order 0..2.

%C Column 7 of A275565.

%H R. H. Hardin, <a href="/A275564/b275564.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A275565.

%K nonn

%O 1,1

%A _R. H. Hardin_, Aug 01 2016

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Last modified January 18 21:06 EST 2021. Contains 340262 sequences. (Running on oeis4.)