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!)
A252601 Number of (n+2)X(4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 5 1
2792, 6978, 22623, 81441, 318274, 1274571, 5243537, 21992185, 92865411, 394359153, 1680557237, 7170758789, 30633016745, 130953875907, 559929985978, 2394657771735, 10242794843158, 43813780754441, 187421784079704 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A252605
LINKS
EXAMPLE
Some solutions for n=4
..2..0..1..2..1..1....1..0..2..2..2..2....2..1..1..2..1..0....2..2..0..1..2..0
..0..1..2..1..1..1....1..0..2..2..2..2....1..2..1..1..2..1....1..2..0..1..2..0
..1..2..1..1..1..1....1..0..2..2..2..0....1..1..2..1..1..2....1..2..0..1..2..0
..2..1..1..1..1..1....1..0..2..2..2..2....2..1..1..2..1..1....2..2..0..1..2..0
..1..1..1..1..2..1....1..0..2..2..0..2....0..2..1..1..2..1....1..2..0..1..2..0
..1..1..1..1..1..1....1..0..2..2..2..2....1..0..2..1..1..2....1..2..0..1..2..0
CROSSREFS
Sequence in context: A119377 A014895 A106300 * A233923 A340174 A252900
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 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 20 03:53 EDT 2024. Contains 371798 sequences. (Running on oeis4.)