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A237534 Number of (n+1)X(3+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock equal 1
11602, 330210, 9080246, 266120870, 7718716424, 228011672782, 6746760123582, 201303029854346, 6028678550818162, 181445164658724640, 5479235823888294194, 166005872557913572654, 5042335321716858992326, 153503802518975275019802 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A237538
LINKS
EXAMPLE
Some solutions for n=1
..2..1..0..0....1..1..3..2....3..0..0..2....2..0..0..2....0..0..0..3
..1..0..0..1....2..2..3..2....2..1..1..0....1..2..1..3....0..0..3..3
CROSSREFS
Sequence in context: A218105 A226905 A162865 * A049051 A250242 A231321
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 09 2014
STATUS
approved

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Last modified July 20 20:50 EDT 2024. Contains 374459 sequences. (Running on oeis4.)