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!)
A300545 Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
8, 1568, 117146, 8514930, 632777378, 47042626155, 3494400946777, 259582877324570, 19283328543117575, 1432478084282766997, 106412759390199221479, 7904956066250728907461, 587225918180407015680952 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A300546.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..1..1..0. .0..0..0..0..0..1..1. .0..0..0..0..1..1..0
..0..0..1..0..0..1..0. .0..0..1..0..1..0..0. .0..0..1..0..0..0..1
..0..1..0..0..1..0..1. .0..1..0..0..1..0..0. .0..1..0..0..0..1..1
..0..0..0..1..1..1..1. .0..0..1..1..1..0..1. .0..0..1..1..1..0..1
..0..1..1..0..0..0..0. .0..0..0..0..1..1..1. .0..0..1..1..1..0..0
CROSSREFS
Cf. A300546.
Sequence in context: A248386 A114617 A162014 * A300972 A300929 A229150
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 08 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 July 16 11:34 EDT 2024. Contains 374347 sequences. (Running on oeis4.)