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!)
A207290 T(n,k)=Number of nXk 0..3 arrays avoiding the pattern z-2 z-1 z in any row or column 7
4, 16, 16, 62, 256, 62, 241, 3844, 3844, 241, 936, 58081, 216952, 58081, 936, 3636, 876096, 12359893, 12359893, 876096, 3636, 14124, 13220496, 702401282, 2663436930, 702401282, 13220496, 14124, 54865, 199487376, 39940889449 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.....4.........16..............62.................241......................936

....16........256............3844...............58081...................876096

....62.......3844..........216952............12359893................702401282

...241......58081........12359893..........2663436930.............572065794890

...936.....876096.......702401282........572065794890..........464024582705468

..3636...13220496.....39940889449.....122968569630173.......376758439920954387

.14124..199487376...2270955601878...26429424077425891....305856308413400619700

.54865.3010168225.129125117609424.5680621805739504100.248307521270762694669197

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..127

EXAMPLE

Some solutions for n=4 k=3

..1..0..2....0..0..3....0..2..0....3..2..2....2..2..1....1..3..3....0..1..1

..3..2..1....2..3..1....3..0..0....0..2..3....0..0..3....1..1..3....3..3..0

..1..0..3....1..2..0....2..1..1....3..0..1....0..0..1....0..1..0....3..1..1

..3..0..1....1..0..0....0..3..1....2..3..2....1..1..3....0..1..0....3..2..1

CROSSREFS

Column 1 is A206839

Column 2 is A206840

Sequence in context: A207134 A206838 A206900 * A223066 A339570 A223071

Adjacent sequences:  A207287 A207288 A207289 * A207291 A207292 A207293

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 16 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 May 19 13:24 EDT 2022. Contains 353833 sequences. (Running on oeis4.)