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A275036 Number of nX7 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-2) or (-2,0) and new values introduced in order 0..2. 1

%I

%S 32,1296,3336,31495,290927,2788663,26631796,255796423,2451632155,

%T 23548292980,226106157788,2171965131197,20860224910704,

%U 200378203063185,1924835061806021,18490921588045973,177631680731302175

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

%C Column 7 of A275037.

%H R. H. Hardin, <a href="/A275036/b275036.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A275037.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 14 2016

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Last modified January 22 18:29 EST 2022. Contains 350486 sequences. (Running on oeis4.)