login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A235575 Number of (n+1)X(2+1) 0..3 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise 1
2894, 102188, 3103656, 82875972, 2014103692, 45287503606, 960171131904, 19390838361256, 376783995824816, 7089022103744966, 129887547400655616, 2327062746593565046, 40910982027733215718, 707691314157678278018 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A235577

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A262418 A235816 A235819 * A281657 A234886 A236655

Adjacent sequences:  A235572 A235573 A235574 * A235576 A235577 A235578

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 12 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 16 05:55 EDT 2022. Contains 356160 sequences. (Running on oeis4.)