The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A186215 Number of (n+1)X6 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant 0
15055, 2008031, 116461359, 9406230423, 660028898887, 49524283508081, 3611859394076247 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A186218
LINKS
EXAMPLE
Some solutions for 3X6
..0..0..2..0..1..0....0..0..1..0..0..0....0..0..1..1..0..1....0..0..0..1..0..0
..0..0..0..0..0..0....0..0..0..0..0..2....0..0..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..2..2....0..0..2..1..0..2....0..1..1..1..1..0....2..0..2..0..2..1
CROSSREFS
Sequence in context: A254588 A254356 A187423 * A347077 A257017 A257014
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 15 2011
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 18 00:47 EDT 2024. Contains 373468 sequences. (Running on oeis4.)