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A219698 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X n array 0

%I #5 Dec 18 2015 18:18:22

%S 2,3,13,64,518,6976,154731,6221117,488520098,72512111703

%N Number of n X n arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X n array

%C Diagonal of A219704

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 25 2012

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Last modified March 29 01:36 EDT 2024. Contains 371264 sequences. (Running on oeis4.)