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A237690 Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock equal 1
5038, 44648, 408824, 4021892, 40288632, 418287818, 4418514021, 47970957966, 529234228994, 5972920589738, 68350297258483, 796609824373786, 9387787977650655, 112196010761065635, 1352091822449547149 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A237694

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A248986 A013534 A309034 * A290121 A269125 A111030

Adjacent sequences:  A237687 A237688 A237689 * A237691 A237692 A237693

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 11 2014

STATUS

approved

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Last modified July 16 11:09 EDT 2020. Contains 335784 sequences. (Running on oeis4.)