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!)
A206837 Number of nX7 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal 0
14124, 199487376, 1745398353572, 15877946803718090, 141405314141528391344, 1266270368466567536724535 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A206838

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Sequence in context: A263911 A215019 A206845 * A206899 A207289 A249192

Adjacent sequences:  A206834 A206835 A206836 * A206838 A206839 A206840

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 13 2012

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 19 11:21 EDT 2022. Contains 353833 sequences. (Running on oeis4.)