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A219919 Number of 6Xn 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 6Xn array 1

%I #4 Dec 01 2012 07:53:55

%S 21,35,356,2563,17007,105936,645589,3916436,23461117,137270726,

%T 779937711,4302009833,23099872468,121161612337,622526124553,

%U 3139050474264,15552260613233,75769994795381,363254825823135,1714827926516862

%N Number of 6Xn 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 6Xn array

%C Row 6 of A219915

%H R. H. Hardin, <a href="/A219919/b219919.txt">Table of n, a(n) for n = 1..24</a>

%e Some solutions for n=3

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 01 2012

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Last modified March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)