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!)
A251638 Number of (n+2)X(1+2) 0..2 arrays with some row, column, diagonal or antidiagonal in every 3X3 subblock summing to 3 1
17511, 429399, 10560127, 259228149, 6364650023, 156279294337, 3837213542225, 94217351705611, 2313377685724183, 56801788011413551, 1394689284588080653, 34244666060924691341, 840830398251185804161, 20645427139891516724819 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 1 of A251641
LINKS
EXAMPLE
Some solutions for n=1
..2..0..2....0..0..0....1..1..2....2..1..2....2..1..1....2..1..0....1..2..1
..2..0..1....2..1..1....0..1..1....2..0..1....2..1..1....0..0..0....1..0..0
..1..0..1....1..2..1....1..0..2....0..1..2....0..1..0....1..1..1....2..0..2
CROSSREFS
Sequence in context: A048256 A303996 A251641 * A234562 A321640 A083599
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 06 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 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)