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A237316 Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 0
81, 2108, 107572, 12331794, 2926294296, 1321644953390, 1305716399716870, 4234337234201829714 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A237324

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A282861 A237376 A296577 * A237722 A250436 A237545

Adjacent sequences:  A237313 A237314 A237315 * A237317 A237318 A237319

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 06 2014

STATUS

approved

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Last modified January 28 13:27 EST 2020. Contains 331321 sequences. (Running on oeis4.)