login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A206168 Number of (n+1)X8 0..3 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..3 introduced in row major order 0
3375401, 529805350, 440473683078, 69556988274126, 57870112115269814 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A206169

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=4

..0..0..0..0..0..0..1..1....0..1..0..1..0..2..2..1....0..0..0..1..0..0..2..0

..2..1..1..2..1..3..2..3....0..3..2..1..3..1..0..1....1..2..2..3..2..3..3..0

..1..0..1..1..1..1..3..3....2..0..3..2..1..1..1..1....1..1..2..2..0..2..3..3

..2..3..2..3..0..0..0..0....2..1..1..0..0..2..0..3....3..0..0..3..0..1..1..0

..2..2..0..2..3..0..1..0....2..2..1..1..0..0..1..0....2..3..0..0..0..0..1..1

CROSSREFS

Sequence in context: A257916 A015408 A036472 * A206382 A114682 A157106

Adjacent sequences:  A206165 A206166 A206167 * A206169 A206170 A206171

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 04 2012

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 13 09:12 EDT 2021. Contains 342935 sequences. (Running on oeis4.)