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A220159 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array 0

%I #3 Dec 06 2012 05:49:43

%S 36,266,5493,108169,2173203,42648602,822242009,15270635323

%N Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array

%C Row 7 of A220153

%e Some solutions for n=3

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 06 2012

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Last modified April 23 13:51 EDT 2024. Contains 371914 sequences. (Running on oeis4.)