The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A237403 T(n,k) = number of (n+1) X (k+1) 0..3 arrays with the maximum plus the upper median plus the lower median minus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one. 5
256, 1540, 1540, 9296, 13924, 9296, 58088, 126848, 126848, 58088, 363220, 1200450, 1748190, 1200450, 363220, 2273712, 11356368, 25159676, 25159676, 11356368, 2273712, 14242608, 107575258, 361453184, 555327358, 361453184, 107575258 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
........256........1540..........9296.........58088.........363220
.......1540.......13924........126848.......1200450.......11356368
.......9296......126848.......1748190......25159676......361453184
......58088.....1200450......25159676.....555327358....12223260408
.....363220....11356368.....361453184...12223260408...411909381794
....2273712...107575258....5197555932..269190640070.13882584141744
...14242608..1019532240...74749364118.5926795463268
...89287168..9677144372.1077627856648
..559586448.91828244608
.3506120448
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 40] for n>43.
EXAMPLE
Some solutions for n=2 k=4
..2..3..2..3..0....0..3..0..3..0....2..2..2..0..0....2..0..2..1..0
..2..3..1..0..2....2..0..1..1..2....2..0..1..3..2....2..0..3..2..2
..3..1..3..1..3....2..0..2..0..2....2..3..2..3..2....0..3..0..2..0
CROSSREFS
Sequence in context: A198073 A197907 A218525 * A237399 A237677 A237672
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 07 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 May 25 15:53 EDT 2024. Contains 372800 sequences. (Running on oeis4.)