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A207195 Number of n X n 0..2 arrays avoiding the pattern z-1 z-1 z in any row or column. 0

%I #8 Jun 22 2022 01:54:38

%S 3,81,12534,12539372,82169395789,3560964505762489,

%T 1025697542018363494742,1959801984026721315634303343

%N Number of n X n 0..2 arrays avoiding the pattern z-1 z-1 z in any row or column.

%C Diagonal of A207201.

%e Some solutions for n=4

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

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

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

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

%Y Cf. A207201.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 15 2012

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)