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A250459 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with nondecreasing maximum of every three consecutive values in every row and column 5
19683, 373248, 373248, 6859000, 17318918, 6859000, 120553784, 772693886, 772693886, 120553784, 1990865512, 32602562806, 83130231052, 32602562806, 1990865512, 32248529487, 1275994883882, 8367484120632, 8367484120632 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.........19683............373248...............6859000...............120553784

........373248..........17318918.............772693886.............32602562806

.......6859000.........772693886...........83130231052...........8367484120632

.....120553784.......32602562806.........8367484120632........1989073833819266

....1990865512.....1275994883882.......771060995856122......427623692376852816

...32248529487....48782075567391.....69143106141467242....89158016669061445146

..512192024001..1821064698359512...6029492985617772723.18010964448339431996059

.7998800059999.66622768121582144.513483970207350870058

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..59

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 83]

EXAMPLE

Some solutions for n=1 k=4

..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0

..0..0..1..2..0..1....0..0..1..0..2..1....0..0..0..0..0..1....0..0..2..2..0..2

..2..0..1..2..2..0....2..0..1..2..0..1....1..0..2..2..1..2....0..1..2..2..2..1

CROSSREFS

Sequence in context: A250505 A186625 A186622 * A250455 A016761 A250593

Adjacent sequences:  A250456 A250457 A250458 * A250460 A250461 A250462

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Nov 23 2014

STATUS

approved

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Last modified October 27 16:33 EDT 2021. Contains 348287 sequences. (Running on oeis4.)