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A235563 Number of (n+1)X(4+1) 0..2 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise 1
17837, 1383617, 114840543, 9226436673, 682927935295, 45560931506381, 2748535870959415, 151139535366320389, 7661370909659405129, 361493024903082821331, 16020641785114433587013, 671836496638837570805585 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A235565

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..68

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A204742 A235782 A235787 * A188103 A250078 A165106

Adjacent sequences:  A235560 A235561 A235562 * A235564 A235565 A235566

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 12 2014

STATUS

approved

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Last modified May 31 22:45 EDT 2020. Contains 334756 sequences. (Running on oeis4.)