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A235827 Number of (4+1)X(n+1) 0..3 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise 0
283672, 64246449, 14397784435, 2855211911294, 542901316539098, 96051333465994238, 16165139737161961508, 2577711638669617077529, 392567951486901178402915, 57214683823639893924494635 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A235824

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=1

..0..2....0..3....0..1....0..3....2..2....0..3....0..2....2..0....2..2....0..3

..3..0....2..0....3..3....3..3....0..0....3..2....2..2....2..1....0..1....2..3

..2..0....3..2....1..3....0..2....2..2....2..1....1..0....3..0....2..2....2..1

..0..2....0..0....2..3....0..3....0..3....1..2....1..2....2..1....0..1....0..1

..2..1....2..1....0..1....0..0....0..2....2..1....2..2....0..1....2..3....3..0

CROSSREFS

Sequence in context: A245659 A321055 A185886 * A204866 A236504 A214357

Adjacent sequences:  A235824 A235825 A235826 * A235828 A235829 A235830

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 16 2014

STATUS

approved

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Last modified May 19 09:14 EDT 2019. Contains 323390 sequences. (Running on oeis4.)