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A236354 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the sum of the upper and lower median values of each 2X2 subblock 6
81, 462, 462, 2588, 3684, 2588, 14952, 27836, 27836, 14952, 86800, 220560, 266600, 220560, 86800, 498976, 1773948, 2706844, 2706844, 1773948, 498976, 2868608, 14076412, 28890754, 37560184, 28890754, 14076412, 2868608, 16528896, 111309712 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

........81.........462.........2588.........14952.........86800........498976

.......462........3684........27836........220560.......1773948......14076412

......2588.......27836.......266600.......2706844......28890754.....301178180

.....14952......220560......2706844......37560184.....548901832....7780893140

.....86800.....1773948.....28890754.....548901832...11150684184..218180124952

....498976....14076412....301178180....7780893140..218180124952.5918599579740

...2868608...111309712...3117428148..108939439596.4240577249374

..16528896...884028160..32329186968.1539221337352

..95237312..7024666376.336865215998

.548375168.55750690252

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..71

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 10]

k=2: [order 31] for n>32

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A183971 A253526 A183963 * A236349 A334036 A253524

Adjacent sequences:  A236351 A236352 A236353 * A236355 A236356 A236357

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jan 23 2014

STATUS

approved

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Last modified September 21 06:18 EDT 2021. Contains 347596 sequences. (Running on oeis4.)