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A237696 Number of (n+1)X(1+1) 0..2 arrays with the maximum plus the upper median plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
81, 310, 1186, 4700, 18612, 73176, 287924, 1136084, 4482952, 17653056, 69546776, 274191240, 1081253560, 4259811632, 16788534672, 66170693936, 260880060656, 1027965311952, 4051919616000, 15968658702496, 62951672360256 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 1 of A237703

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

CROSSREFS

Sequence in context: A237456 A183994 A237703 * A237557 A237550 A237567

Adjacent sequences:  A237693 A237694 A237695 * A237697 A237698 A237699

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 11 2014

STATUS

approved

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Last modified July 8 19:20 EDT 2020. Contains 335524 sequences. (Running on oeis4.)