login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A193611 Number of n X n symmetric 0..4 arrays with no element equal to the sum mod 5 of all its horizontal and vertical neighbors 0
4, 64, 4096, 1048580, 1073745920, 4398046511104, 72057594037927936 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for 4X4

..1..0..4..3....1..0..3..3....1..0..2..2....0..1..4..4....0..1..3..4

..0..2..0..3....0..2..3..3....0..4..3..1....1..1..1..1....1..0..1..0

..4..0..0..4....3..3..1..4....2..3..3..3....4..1..4..3....3..1..1..4

..3..3..4..0....3..3..4..1....2..1..3..2....4..1..3..4....4..0..4..4

CROSSREFS

Sequence in context: A053718 A053773 A053763 * A193755 A194501 A053923

Adjacent sequences:  A193608 A193609 A193610 * A193612 A193613 A193614

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 31 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 05:56 EDT 2021. Contains 343199 sequences. (Running on oeis4.)