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A238316 Number of (n+1)X(n+1) 0..2 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors 0

%I #4 Feb 24 2014 07:50:13

%S 3,67,4294,721939,459256128,1266938409578,13394202897232848,

%T 504070949140994691397

%N Number of (n+1)X(n+1) 0..2 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors

%C Diagonal of A238323

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 24 2014

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Last modified September 6 14:16 EDT 2024. Contains 375715 sequences. (Running on oeis4.)