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A250455 Number of (n+2) X (1+2) 0..2 arrays with nondecreasing maximum of every three consecutive values in every row and column. 1
19683, 373248, 6859000, 120553784, 1990865512, 32248529487, 512192024001, 7998800059999, 123781481019253, 1900633644603000, 29012551351120576, 441121225835112256, 6686195501981749312, 101112177444306318837 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 1 of A250459.
LINKS
FORMULA
Empirical recurrence of order 83 (see link above).
EXAMPLE
Some solutions for n=1
..1..1..0....2..2..0....0..0..2....2..2..0....2..1..1....0..1..0....2..1..0
..1..2..0....0..1..1....2..2..1....2..0..1....1..1..0....1..0..2....0..1..0
..2..2..2....0..1..0....0..1..0....0..2..2....1..1..0....0..2..2....0..0..1
CROSSREFS
Cf. A250459.
Sequence in context: A186625 A186622 A250459 * A016761 A250593 A016773
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 23 2014
STATUS
approved

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Last modified July 14 20:49 EDT 2024. Contains 374323 sequences. (Running on oeis4.)