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!)
A281164 Number of nX7 0..1 arrays with no element equal to more than three of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. 1
0, 1388, 84443, 619502, 4098895, 22796763, 111826676, 511077328, 2213577238, 9219387478, 37243761722, 146843636089, 567586366405, 2158163009599, 8094169842566, 30006682413781, 110139856305082, 400800296115796 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 7 of A281165.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..1..1..0..1. .0..1..0..0..0..1..0. .0..0..1..1..0..1..0
..1..1..0..1..0..1..1. .0..1..0..1..1..0..1. .1..0..0..1..0..1..1
..0..0..1..1..0..1..0. .1..0..1..0..1..1..0. .1..1..1..0..1..1..0
CROSSREFS
Cf. A281165.
Sequence in context: A253497 A253490 A253451 * A250816 A031983 A249970
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 16 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 March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)