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!)
A237315 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal 7
256, 1352, 1352, 7398, 12690, 7398, 42474, 120650, 120650, 42474, 246644, 1218584, 1928204, 1218584, 246644, 1457838, 12256598, 33313192, 33313192, 12256598, 1457838, 8652288, 126084160, 564748168, 1008893682, 564748168, 126084160 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
........256..........1352............7398.............42474.............246644
.......1352.........12690..........120650...........1218584...........12256598
.......7398........120650.........1928204..........33313192..........564748168
......42474.......1218584........33313192........1008893682........29705879570
.....246644......12256598.......564748168.......29705879570......1497953660532
....1457838.....126084160......9923274434......921202878454.....81336374507888
....8652288....1291478032....171975075815....28008850432408...4273223840276532
...51729960...13373871324...3048207305436...882133454021878.236863001850227620
..309766574..138091649434..53496852362572.27361616605419182
.1861078542.1434854215354.954253356186506
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 37]
k=2: [order 99]
EXAMPLE
Some solutions for n=2 k=4
..0..2..2..2..2....0..0..0..2..1....0..2..1..2..2....0..0..3..2..3
..1..2..3..3..3....3..0..3..0..2....0..3..1..0..1....0..3..0..0..0
..2..2..3..3..3....0..0..0..3..0....0..3..1..2..1....0..0..3..3..1
CROSSREFS
Sequence in context: A206327 A242257 A206320 * A237309 A188865 A187964
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 06 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 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)