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A204963 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order 0

%I

%S 166,10416,1858301,916967622,1294422106052,5180662454351231,

%T 58780083916064047171

%N Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order

%C Diagonal of A204971

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 21 2012

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Last modified November 29 02:51 EST 2022. Contains 358421 sequences. (Running on oeis4.)