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!)
A238298 T(n,k) = Number of (n+1) X (k+1) 0..3 arrays with the maximum plus the upper median minus the lower median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one. 6
256, 1836, 1836, 13405, 23854, 13405, 99036, 315906, 315906, 99036, 730412, 4268354, 7627878, 4268354, 730412, 5365422, 57285970, 189073818, 189073818, 57285970, 5365422, 39447709, 765288116, 4621997125, 8714280010, 4621997125 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.........256..........1836..........13405...........99036...........730412
........1836.........23854.........315906.........4268354.........57285970
.......13405........315906........7627878.......189073818.......4621997125
.......99036.......4268354......189073818......8714280010.....392415712138
......730412......57285970.....4621997125....392415712138...32281789838154
.....5365422.....765288116...112528419472..17607428730016.2648594773768716
....39447709...10243514512..2750034208462.793898547448114
...290457856..137637981750.67554373314860
..2138629508.1846283781696
.15729683540
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 32] for n>33.
EXAMPLE
Some solutions for n=2, k=4
..0..0..0..1..3....0..0..0..1..1....0..1..0..2..1....0..1..0..0..0
..1..2..2..2..3....1..2..2..2..3....1..2..0..2..3....3..0..2..2..3
..3..1..0..2..2....3..3..2..2..1....0..0..2..1..3....0..0..0..3..2
CROSSREFS
Sequence in context: A237905 A238145 A238140 * A238293 A237898 A237891
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 23 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 June 17 22:48 EDT 2024. Contains 373466 sequences. (Running on oeis4.)