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!)
A184222 Half the number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3 0
15, 411, 20958, 4207437, 2100723171, 3390680573862, 15315046904131217, 208931377551712553029, 8272310043853147026573208, 970110871920573518964680291007, 333510642857168957639513329116920351 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A184231

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for 3X3

..0..3..1....1..0..3....1..3..1....3..1..2....3..0..2....2..1..3....3..0..2

..2..0..3....0..3..0....2..0..2....0..3..0....0..3..0....0..3..0....0..2..0

..0..2..1....1..0..1....0..2..0....3..2..3....3..2..3....3..2..3....2..0..3

CROSSREFS

Sequence in context: A279133 A034675 A216343 * A069431 A133791 A323781

Adjacent sequences:  A184219 A184220 A184221 * A184223 A184224 A184225

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 10 2011

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 May 26 13:17 EDT 2022. Contains 354092 sequences. (Running on oeis4.)