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!)
A303459 Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
16, 512, 12408, 306767, 7626768, 189848373, 4729712941, 117851999934, 2936875623336, 73188908936110, 1823941673502397, 45454643346741044, 1132781991907637247, 28230245358586758157, 703530728472049344422 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 5 of A303456.
LINKS
FORMULA
Empirical recurrence of order 68 (see link above)
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..0..1..1..0. .0..0..1..1..0. .0..0..1..0..0. .0..0..1..0..0
..0..1..1..0..0. .1..0..1..1..0. .0..1..1..0..0. .0..1..1..0..0
..1..0..0..1..1. .0..1..0..0..0. .0..1..1..1..0. .1..0..1..1..0
..1..1..1..1..1. .0..0..0..1..1. .0..0..0..0..1. .1..0..0..0..1
CROSSREFS
Cf. A303456.
Sequence in context: A300801 A268147 A303453 * A301440 A302012 A302007
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 24 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 April 24 14:54 EDT 2024. Contains 371960 sequences. (Running on oeis4.)