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!)
A300938 Number of n X n 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 0
1, 3, 5, 38, 248, 3873, 99717, 5562548, 556497081, 107105438462 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A300944.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..1. .0..1..1..1..1. .0..1..1..0..0. .0..1..1..0..1
..0..0..1..1..1. .1..1..1..0..0. .0..0..0..0..0. .1..1..1..0..1
..0..0..1..1..0. .1..1..0..0..0. .0..1..0..0..0. .1..1..1..1..1
..0..0..0..0..1. .1..0..0..0..0. .0..1..1..1..0. .0..0..0..0..1
..1..0..0..0..0. .1..0..0..0..1. .1..0..1..1..1. .1..0..0..0..0
CROSSREFS
Cf. A300944.
Sequence in context: A337858 A337859 A184314 * A183258 A077779 A176112
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 16 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 23 01:12 EST 2024. Contains 370265 sequences. (Running on oeis4.)