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!)
A222694 Number of 5Xn 0..2 arrays with exactly floor(5Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
0, 216, 2050, 47696, 419562, 12765040, 126928736, 4292369132, 46437072442, 1665124000236, 18888312086238, 693531743163910, 8036001935941558, 298077593903645728, 3488969551802753323, 130077277806080796677 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 5 of A222690
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1....0..0..0....0..1..2....0..0..1....0..0..0....0..0..1....0..1..0
..0..0..0....0..0..0....0..0..0....1..0..0....0..0..0....0..1..0....2..0..0
..1..0..1....0..0..1....1..0..0....0..0..0....0..0..1....1..0..0....0..0..0
..0..0..0....2..1..2....0..0..0....0..0..1....0..1..1....0..0..0....0..0..0
..0..0..0....1..1..0....0..0..0....0..0..0....2..0..0....0..0..0....0..0..1
CROSSREFS
Sequence in context: A016911 A370693 A323801 * A243862 A223559 A017055
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 28 2013
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 23 07:57 EDT 2024. Contains 374546 sequences. (Running on oeis4.)