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A237144 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the lower median of every 2X2 subblock equal 1
1472, 17616, 197724, 2463178, 30395540, 386318536, 4907807434, 63050866982, 810927873608, 10483172560776, 135678289455352, 1760563397196632, 22865546963394958, 297381473402377694, 3870021230461078504 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A237150
LINKS
FORMULA
Empirical recurrence of order 70 (see link above)
EXAMPLE
Some solutions for n=3
..2..0..2....2..0..3....2..3..2....0..2..2....0..1..2....2..1..2....2..0..3
..1..3..1....3..2..3....0..3..1....2..3..3....2..2..1....1..0..1....3..1..3
..3..1..3....3..2..3....2..2..3....2..2..2....0..1..1....3..0..3....3..1..0
..0..1..2....1..3..0....1..3..0....2..3..2....2..2..1....0..3..0....0..2..3
CROSSREFS
Sequence in context: A255735 A252521 A237379 * A187310 A167575 A157505
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 04 2014
STATUS
approved

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Last modified April 22 06:39 EDT 2024. Contains 371888 sequences. (Running on oeis4.)