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!)
A305960 Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. 1
8, 5824, 264680, 17617201, 1088558635, 68109190612, 4251930563544, 265585355341963, 16586555684575766, 1035918306523085734, 64698106959674584155, 4040715102616009846706, 252362495353182410193096 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A305961.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A305961.

Sequence in context: A052497 A304426 A316281 * A317221 A305691 A317071

Adjacent sequences: A305957 A305958 A305959 * A305961 A305962 A305963

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 15 2018

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 February 5 18:47 EST 2023. Contains 360087 sequences. (Running on oeis4.)