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A237866 Number of (n+1)X(6+1) 0..2 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
107272, 2385956, 55582616, 1360467556, 31199205700, 726581268166, 17294230106544, 415902349829102, 9695376441265920, 227751536306356010, 5413153557708303316, 128972134031199811494, 3027744338091291704100 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A237868

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..50

EXAMPLE

Some solutions for n=1

..1..1..2..1..2..2..0....1..1..2..1..1..2..2....2..0..0..0..1..1..0

..2..1..0..0..1..2..0....2..1..0..0..2..2..0....1..0..2..1..2..1..2

CROSSREFS

Sequence in context: A228268 A215783 A061332 * A204875 A158964 A248446

Adjacent sequences:  A237863 A237864 A237865 * A237867 A237868 A237869

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 14 2014

STATUS

approved

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Last modified September 22 03:54 EDT 2020. Contains 337289 sequences. (Running on oeis4.)