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!)
A205264 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..1 introduced in row major order 9
240, 1814, 1814, 13728, 26185, 13728, 103876, 379283, 379283, 103876, 785920, 5487807, 10529929, 5487807, 785920, 5946280, 79391891, 291785631, 291785631, 79391891, 5946280, 44989988, 1148637735, 8084022743, 15472955417, 8084022743 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.......240.........1814...........13728.............103876...............785920
......1814........26185..........379283............5487807.............79391891
.....13728.......379283........10529929..........291785631...........8084022743
....103876......5487807.......291785631........15472955417.........820342090696
....785920.....79391891......8084022743.......820342090696.......83226275730613
...5946280...1148637735....224000986714.....43501020707845.....8445646803772751
..44989988..16618559061...6206887994602...2306771728514169...857047765548288466
.340397184.240437007466.171986199003963.122321759466209533.86969981709764397873
LINKS
EXAMPLE
Some solutions for n=3 k=3
..0..1..1..1..1....0..1..1..0..1....0..1..1..1..1....0..0..1..0..1
..1..1..1..1..1....1..0..1..0..0....0..1..0..1..0....0..1..1..0..1
..1..0..1..0..1....1..0..1..1..1....0..0..0..0..1....0..0..0..0..0
..1..1..1..0..1....0..0..1..0..0....0..0..0..1..0....1..0..0..1..0
..0..1..0..0..0....0..0..1..0..1....0..0..1..0..1....1..1..1..0..0
CROSSREFS
Sequence in context: A268796 A290655 A212781 * A205257 A049335 A004009
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 24 2012
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 July 24 12:40 EDT 2024. Contains 374583 sequences. (Running on oeis4.)