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!)
A257383 Number of (n+2)X(4+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum less than the central column sum 1
24720784, 343435024, 2462144400, 17165192256, 188932792896, 2578927657216, 33052610739600, 423586575525961, 5688022544240400, 75055105665973161, 939761719675086400, 11768233345435487376, 151539464193951582736 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A257385
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0..0..1..1....0..0..0..0..1..2....0..0..0..0..2..2....0..0..0..0..2..2
..0..1..1..1..1..2....0..1..1..1..1..2....1..0..1..2..2..1....1..0..0..2..2..2
..0..0..2..1..0..1....2..0..1..1..1..1....1..0..0..1..1..1....1..0..0..1..0..0
CROSSREFS
Sequence in context: A187315 A083636 A124069 * A186839 A206084 A187439
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 21 2015
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 25 07:41 EDT 2024. Contains 371964 sequences. (Running on oeis4.)