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A237371 Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the upper median plus the lower median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
3840, 20812, 116880, 723928, 4429368, 27053348, 165467520, 1026092552, 6319203136, 38680736568, 237385725976, 1476526709904, 9118194049424, 55928190691948, 344012027433208, 2146405306742592, 13288265907921064 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A237375

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A231416 A151564 A179747 * A061404 A234827 A253291

Adjacent sequences:  A237368 A237369 A237370 * A237372 A237373 A237374

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 07 2014

STATUS

approved

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Last modified May 24 06:53 EDT 2019. Contains 323529 sequences. (Running on oeis4.)