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A219886 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array 0

%I #3 Nov 30 2012 16:53:26

%S 21,87,410,2645,14536,74998,371384,1780796,8327951,37770000,165587776,

%T 701557921,2877746302,11458190975,44395384830,167697083241,

%U 618401792448,2228478398270,7854147511367

%N Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array

%C Row 5 of A219883

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 30 2012

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Last modified April 17 22:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)