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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A316414 Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 0
1, 4, 14, 93, 1265, 33380, 1459806, 110043463, 14254922771, 3155289459645, 1195938340938067, 776257336467287589 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A316420.

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316420.

Sequence in context: A331637 A340024 A190481 * A268689 A299199 A209322

Adjacent sequences:  A316411 A316412 A316413 * A316415 A316416 A316417

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 02 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 2 11:31 EST 2021. Contains 349440 sequences. (Running on oeis4.)