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A250620 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing maximum of every two consecutive values in every row and column 9
81, 484, 484, 2704, 6166, 2704, 13456, 71610, 71610, 13456, 64009, 712806, 1690656, 712806, 64009, 290521, 6676967, 32944614, 32944614, 6676967, 290521, 1283689, 58739370, 595652178, 1223112064, 595652178, 58739370, 1283689, 5541316 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......81.........484...........2704.............13456................64009

......484........6166..........71610............712806..............6676967

.....2704.......71610........1690656..........32944614............595652178

....13456......712806.......32944614........1223112064..........41645945389

....64009.....6676967......595652178.......41645945389........2643367969909

...290521....58739370.....9955305702.....1297010595743......152027338842125

..1283689...498574034...159191945604....38406061258495.....8269611194424492

..5541316..4101893438..2447786874761..1087877705486708...428355037265846415

.23541904.33038787862.36658965039940.29903210113757561.21466834599667321402

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..144

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 13]

k=2: [order 39]

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A205286 A253407 A253400 * A237082 A236651 A295018

Adjacent sequences:  A250617 A250618 A250619 * A250621 A250622 A250623

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Nov 26 2014

STATUS

approved

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Last modified October 22 13:19 EDT 2019. Contains 328318 sequences. (Running on oeis4.)