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!)
A221093 Number of 7Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor 0
0, 4096, 4244238, 18736955689, 47632473997312, 137999718103495689, 376959882525471479946, 1047276497234600613324304, 2882029793367070337506842240 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 7 of A221087

LINKS

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

EXAMPLE

Some solutions for n=3

..0..2..0....0..2..0....0..2..0....0..2..0....0..2..0....0..2..0....0..2..0

..1..1..0....1..1..0....1..1..0....1..1..1....1..1..1....1..1..0....1..1..1

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

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

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

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

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

CROSSREFS

Sequence in context: A017034 A017118 A269294 * A017214 A017322 A223268

Adjacent sequences:  A221090 A221091 A221092 * A221094 A221095 A221096

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 01 2013

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 January 21 05:57 EST 2022. Contains 350473 sequences. (Running on oeis4.)