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A235575 Number of (n+1)X(2+1) 0..3 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise 1
2894, 102188, 3103656, 82875972, 2014103692, 45287503606, 960171131904, 19390838361256, 376783995824816, 7089022103744966, 129887547400655616, 2327062746593565046, 40910982027733215718, 707691314157678278018 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A235577
LINKS
EXAMPLE
Some solutions for n=2
..2..2..1....2..2..1....1..1..1....3..0..2....0..2..3....2..1..2....2..3..2
..3..2..0....3..2..1....1..3..1....2..2..3....0..1..0....1..0..0....3..3..0
..1..0..0....0..0..2....3..3..1....1..2..2....0..3..0....2..1..1....2..3..1
CROSSREFS
Sequence in context: A262418 A235816 A235819 * A281657 A234886 A236655
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 12 2014
STATUS
approved

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Last modified February 20 17:43 EST 2024. Contains 370215 sequences. (Running on oeis4.)