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A236733 Number of (n+1)X(4+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal 1
6663, 131147, 2541745, 55635639, 1233474275, 28500435385, 665661690049, 15768609931211, 375569735335243, 8989526603612093, 215676078863399425, 5183740859875741691, 124709488532738105743, 3002226669923859228469 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A236737
LINKS
EXAMPLE
Some solutions for n=2
..1..1..1..1..1....0..1..1..1..0....1..1..0..1..0....1..0..2..0..0
..1..1..2..1..0....2..1..0..1..2....1..2..1..1..1....1..1..1..1..0
..2..0..1..1..1....1..1..2..1..0....1..0..1..0..2....0..1..0..1..1
CROSSREFS
Sequence in context: A233661 A131645 A186086 * A015310 A043516 A046410
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 30 2014
STATUS
approved

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Last modified July 5 12:30 EDT 2024. Contains 374026 sequences. (Running on oeis4.)