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!)
A185840 Number of (n+1) X 5 0..2 arrays with every 2 X 2 subblock trace equal to some horizontal or vertical neighbor 2 X 2 subblock trace. 1
3249, 222003, 10670517, 560733777, 29306445165, 1532963751183, 80217651167325, 4197053176231149, 219601118427318765, 11490030204820182927, 601185773584255262859, 31455455893650113824017, 1645823762938509830816193 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A185845.
LINKS
EXAMPLE
Some solutions for 3 X 5
..1..0..1..2..2....1..1..1..1..1....2..0..1..2..1....0..1..2..1..1
..0..1..2..1..0....0..0..0..1..2....1..0..2..2..0....1..2..2..1..2
..1..2..2..1..1....2..2..2..2..2....0..0..1..1..0....0..1..1..1..2
CROSSREFS
Cf. A185845.
Sequence in context: A048421 A238254 A187135 * A251501 A106722 A031555
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 05 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 May 26 13:17 EDT 2024. Contains 372826 sequences. (Running on oeis4.)