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!)
A181221 Number of nX5 binary matrices with no three 1's adjacent in a line horizontally, vertically, diagonally or antidiagonally 1
24, 576, 6475, 97764, 1495392, 21513936, 316896477, 4672517426, 68571093673, 1008146803248, 14823077688569, 217869625616208, 3202690847200999, 47079980407589036, 692062815855417554, 10173239318638447266 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A181224
LINKS
EXAMPLE
Some avoided solutions for 3X5
..0..1..0..0..0....0..1..0..0..0....0..0..0..0..0....0..0..0..0..1
..0..0..1..0..0....0..1..0..0..0....0..0..0..0..0....0..0..0..1..0
..1..0..0..1..0....0..1..0..1..0....1..1..1..1..0....1..0..1..0..0
CROSSREFS
Sequence in context: A292282 A206933 A206868 * A188563 A207085 A207179
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 10 2010
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 14 12:29 EDT 2024. Contains 374318 sequences. (Running on oeis4.)