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A185512 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock singular 1

%I

%S 31,1489,154561,80761059,96865190255,525819969687473,

%T 7163899183570889649,401495654334865659721795,

%U 61022067811287778788163474527,35442207739725827931704064596045201

%N Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock singular

%C Diagonal of A185521

%e Some solutions for 3X3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 29 2011

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Last modified June 29 05:44 EDT 2022. Contains 354910 sequences. (Running on oeis4.)