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A238149 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
1608, 15800, 165780, 1792226, 18918620, 202875630, 2177434900, 23302931502, 247341832408, 2649887010098, 28404840743328, 303472276024264, 3232102394981984, 34598942786178958, 370449222024081488 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A238155
LINKS
FORMULA
Empirical recurrence of order 56 (see link above)
EXAMPLE
Some solutions for n=3
..3..0..2....3..1..2....2..0..2....1..1..1....1..0..2....0..1..3....2..1..0
..2..0..2....0..2..2....2..0..3....1..2..2....0..2..0....3..1..2....2..2..0
..2..1..3....2..1..3....0..3..2....2..1..3....2..1..1....2..2..1....3..2..0
..0..1..0....0..0..1....1..1..0....2..3..3....0..0..1....0..1..0....3..3..2
CROSSREFS
Sequence in context: A224947 A098193 A064251 * A023685 A301938 A352545
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 18 2014
STATUS
approved

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Last modified June 13 16:53 EDT 2024. Contains 373391 sequences. (Running on oeis4.)