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A237207 Number of (n+1)X(4+1) 0..3 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock equal 1
24478, 472096, 8448682, 185371924, 3917422192, 89734494932, 1999471396100, 46699481853014, 1063936806945636, 25099790888660098, 578228863353371144, 13717620607741681066, 318020342536517972144, 7569827977565249738206 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A237211
LINKS
EXAMPLE
Some solutions for n=1
..0..2..0..2..2....2..0..0..2..3....3..0..2..3..1....3..3..0..1..3
..0..3..0..3..2....0..3..2..0..0....2..1..3..2..2....1..1..2..3..1
CROSSREFS
Sequence in context: A206682 A083621 A083622 * A224423 A356355 A258441
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 05 2014
STATUS
approved

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Last modified February 26 21:28 EST 2024. Contains 370352 sequences. (Running on oeis4.)