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A219918 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array 1

%I #4 Dec 01 2012 07:53:16

%S 15,21,155,819,3800,16159,65802,262840,1033491,3983613,14992543,

%T 55035788,197291298,692007090,2378947973,8024418500,26575612774,

%U 86454342449,276372974756,868539256771,2684471740896,8163897110646,24439762845296

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

%C Row 5 of A219915

%H R. H. Hardin, <a href="/A219918/b219918.txt">Table of n, a(n) for n = 1..84</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 01 2012

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Last modified May 14 07:57 EDT 2024. Contains 372530 sequences. (Running on oeis4.)