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!)
A295410 Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1's. 1
1, 10, 234, 19026, 5741797, 6093564449, 23025368248778, 309978055996363953, 14848281990251202621848, 2531566579339095935434773023, 1536279445900820560553369496441851 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A295416.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..0. .0..0..0..0..0
..0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..1. .1..0..0..0..0
..1..1..1..0..0. .0..0..1..1..0. .0..0..1..0..1. .1..1..0..0..0
..0..1..0..1..0. .1..1..0..1..0. .1..1..1..0..0. .0..1..0..0..0
..0..1..0..1..1. .1..0..0..1..0. .0..1..1..0..0. .0..1..0..1..1
CROSSREFS
Cf. A295416.
Sequence in context: A087434 A297648 A012240 * A188679 A167867 A268080
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 22 2017
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 June 24 03:36 EDT 2024. Contains 373661 sequences. (Running on oeis4.)