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A187440 Number of (n+1)X9 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors 0

%I

%S 206705746,1606497082565,12634446300216814,99822247953081225350,

%T 787665007015732116012615

%N Number of (n+1)X9 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors

%C Column 8 of A187441

%e Some solutions for 3X9

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 10 2011

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Last modified September 24 09:10 EDT 2021. Contains 347630 sequences. (Running on oeis4.)