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!)
A251175 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having the minimum of its diagonal elements less than the absolute difference of its antidiagonal elements 8
136, 1192, 1192, 10950, 28598, 10950, 100462, 710438, 710438, 100462, 923568, 17822017, 49016166, 17822017, 923568, 8489391, 447045247, 3387331664, 3387331664, 447045247, 8489391, 78041038, 11217458242, 234762060017 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.....136........1192..........10950............100462...............923568
....1192.......28598.........710438..........17822017............447045247
...10950......710438.......49016166........3387331664.........234762060017
..100462....17822017.....3387331664......648299061766......124211482822101
..923568...447045247...234762060017...124211482822101....65874570824121892
.8489391.11217458242.16266032347068.23810611569424562.34940908062684870572
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 13]
k=2: [order 39]
EXAMPLE
Some solutions for n=2 k=4
..1..0..0..2..3....1..0..2..0..3....2..0..2..3..3....1..0..2..1..2
..0..0..2..1..2....0..2..2..3..0....0..2..3..3..0....0..2..1..2..1
..0..2..0..3..2....2..1..2..2..2....2..1..3..0..2....2..1..3..2..2
CROSSREFS
Sequence in context: A234169 A234162 A262091 * A251168 A023070 A015163
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 30 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 April 14 03:00 EDT 2024. Contains 371652 sequences. (Running on oeis4.)