login
This site is supported by donations 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

Table of n, a(n) for n=1..9.

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

Adjacent sequences:  A239036 A239037 A239038 * A239040 A239041 A239042

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 16 20:23 EDT 2019. Contains 328103 sequences. (Running on oeis4.)