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A228985 Number of nX7 0..1 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X8 0..1 array. 1

%I #8 Sep 13 2013 21:47:06

%S 128,15328,1690048,155031688,13667372880,1186378174632,

%T 102496979446048,8840592483085496,762100592070241256,

%U 65684195622535124744,5660847063615396145552,487856774627992271501960

%N Number of nX7 0..1 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X8 0..1 array.

%C Column 7 of A228986.

%H R. H. Hardin, <a href="/A228985/b228985.txt">Table of n, a(n) for n = 1..15</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Sep 10 2013

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Last modified April 16 12:05 EDT 2024. Contains 371711 sequences. (Running on oeis4.)