login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A236087 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock 5
256, 2400, 2400, 22506, 38640, 22506, 211560, 601166, 601166, 211560, 1998580, 9486338, 15352800, 9486338, 1998580, 18841712, 150467212, 392462578, 392462578, 150467212, 18841712, 177646290, 2390621976, 10285907173, 16839382568 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

..........256..........2400...........22506...........211560..........1998580

.........2400.........38640..........601166..........9486338........150467212

........22506........601166........15352800........392462578......10285907173

.......211560.......9486338.......392462578......16839382568.....744464574416

......1998580.....150467212.....10285907173.....744464574416...56798079444644

.....18841712....2390621976....269065203004...32986703622348.4323926716029622

....177646290...37935191948...7036190023429.1453213042220010

...1674513256..601817039030.183374695218144

..15787986826.9550523506046

.148843166800

LINKS

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

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 29]

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A204309 A235416 A235261 * A204303 A236083 A016780

Adjacent sequences:  A236084 A236085 A236086 * A236088 A236089 A236090

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jan 19 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 October 28 06:41 EDT 2021. Contains 348316 sequences. (Running on oeis4.)