login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A235972 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the upper median value of each 2X2 subblock 9
256, 1964, 1964, 13194, 16744, 13194, 85476, 119770, 119770, 85476, 556486, 856720, 872370, 856720, 556486, 3614066, 6207010, 7116040, 7116040, 6207010, 3614066, 23457361, 44922684, 60649470, 77914322, 60649470, 44922684, 23457361 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

........256.........1964.........13194...........85476............556486

.......1964........16744........119770..........856720...........6207010

......13194.......119770........872370.........7116040..........60649470

......85476.......856720.......7116040........77914322.........886929448

.....556486......6207010......60649470.......886929448.......13646551852

....3614066.....44922684.....512448944.....10093660184......206960732188

...23457361....325144432....4326517048....115542593952.....3197537340066

..152354048...2361022844...36654517336...1334376486922....49364486174800

..990262160..17119474440..310058272376..15242379756616...758580259046316

.6430004688.124220037442.2622217549676.174871682199140.11656623605416228

LINKS

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

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 10] for n>13

k=2: [order 29] for n>34

k=3: [order 88] for n>95

EXAMPLE

Some solutions for n=2 k=4

..1..0..2..0..2....0..0..2..0..3....0..1..0..0..1....0..0..3..0..2

..0..3..1..0..3....1..0..1..3..0....3..2..1..0..2....2..1..2..3..0

..0..0..0..0..1....1..0..0..0..0....3..3..1..1..3....3..0..0..0..3

CROSSREFS

Sequence in context: A237786 A238063 A238058 * A235965 A206188 A205370

Adjacent sequences:  A235969 A235970 A235971 * A235973 A235974 A235975

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jan 17 2014

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 18 22:08 EDT 2019. Contains 322237 sequences. (Running on oeis4.)