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!)
A237205 Number of (n+1)X(2+1) 0..3 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock equal 1
1160, 8396, 59386, 472096, 3795060, 31758656, 268073808, 2299621682, 19798836956, 171720524760, 1490935517068, 12994101833060, 113246139505684, 989136025760348, 8636006648736322, 75505947589499378, 659829426416683152 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A237211
LINKS
FORMULA
Empirical recurrence of order 97 (see link above)
EXAMPLE
Some solutions for n=3
..3..1..3....0..1..2....0..0..0....0..3..2....1..1..3....0..2..0....1..3..1
..1..2..1....2..3..0....2..1..3....1..3..3....3..0..1....2..0..2....2..0..2
..3..1..0....3..2..1....1..1..1....0..3..2....1..1..1....2..0..2....2..1..2
..2..1..1....2..3..0....1..1..3....3..1..3....0..2..3....0..2..0....2..3..0
CROSSREFS
Sequence in context: A219148 A031532 A168248 * A358868 A236814 A152307
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 05 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 March 28 07:48 EDT 2024. Contains 371235 sequences. (Running on oeis4.)