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A209720 T(n,k)=Number of nXk 0..4 arrays with every element value z a city block distance of exactly z from another element value z 3

%I #4 Mar 31 2012 12:37:30

%S 1,2,2,5,13,5,12,115,115,12,33,1468,5822,1468,33,87,19993,411940,

%T 411940,19993,87,227,242036,29021568,152691350,29021568,242036,227,

%U 583,2830612,1712295424

%N T(n,k)=Number of nXk 0..4 arrays with every element value z a city block distance of exactly z from another element value z

%C Table starts

%C ...1......2........5........12.......33.........87.....227.583

%C ...2.....13......115......1468....19993.....242036.2830612

%C ...5....115.....5822....411940.29021568.1712295424

%C ..12...1468...411940.152691350

%C ..33..19993.29021568

%C ..87.242036

%C .227

%e Some solutions for n=4 k=2

%e ..2..2....1..2....2..1....0..1....2..3....0..3....0..1....0..3....4..2....2..1

%e ..2..3....1..2....1..1....3..1....3..0....1..1....1..1....1..1....1..1....2..1

%e ..2..2....2..2....2..1....0..0....2..0....3..1....0..1....0..1....0..2....2..2

%e ..3..2....0..2....1..1....0..3....0..3....0..3....0..1....0..3....0..4....2..0

%K nonn,tabl

%O 1,2

%A _R. H. Hardin_ Mar 12 2012

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Last modified August 16 23:15 EDT 2024. Contains 375195 sequences. (Running on oeis4.)