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A237535 Number of (n+1)X(4+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock equal 1
83104, 4857060, 266120870, 15808900408, 924306101684, 55265390979178, 3305459406659964, 199510098055657088, 12080624520262702334, 735074852627156236784, 44859668256282656561688, 2745871351805467354744430 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A237538
LINKS
EXAMPLE
Some solutions for n=1
..2..2..1..0..1....3..2..0..1..3....3..2..1..3..3....1..1..1..0..0
..2..1..0..0..0....1..1..0..2..1....3..1..2..0..2....2..3..2..2..1
CROSSREFS
Sequence in context: A234113 A237097 A206323 * A251112 A298437 A190385
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 09 2014
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)