The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A239039 Number of n X n 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it, modulo 4 0
3, 41, 2739, 996325, 1916936295, 19230047618078, 1009453455314170147, 277622934845789537083432, 399900776405405212831407783271 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A239047
LINKS
EXAMPLE
Some solutions for n=3
..2..2..3....2..0..2....0..0..2....0..0..3....3..2..0....0..0..0....0..3..3
..2..2..2....2..0..0....3..2..0....3..3..2....3..2..3....0..0..2....2..2..2
..0..0..0....3..3..1....2..1..2....2..1..3....0..2..1....3..3..1....0..0..3
CROSSREFS
Sequence in context: A262644 A238990 A192888 * A228456 A238717 A057013
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 09 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 May 23 18:34 EDT 2024. Contains 372765 sequences. (Running on oeis4.)