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!)
A303096 Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 0
0, 3, 77, 4667, 1138331, 906385523, 2441756629583, 22050004579190301, 670548945799312331099 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A303102.

LINKS

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

EXAMPLE

Some solutions for n=5

..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0

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

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

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

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

CROSSREFS

Cf. A303102.

Sequence in context: A183961 A250328 A306432 * A324307 A065993 A097802

Adjacent sequences:  A303093 A303094 A303095 * A303097 A303098 A303099

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 18 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 October 17 17:21 EDT 2021. Contains 348065 sequences. (Running on oeis4.)