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!)
A186535 Number of (n+1) X 9 0..2 arrays with no 2 X 2 subblock determinant equal to any horizontal or vertical neighbor 2 X 2 subblock determinant. 0
73494218, 110986523654, 192072734086538, 330651060182605074, 561052248760733641430 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 8 of A186536.

LINKS

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

EXAMPLE

Some solutions for 3 X 9

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

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

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

CROSSREFS

Cf. A186536.

Sequence in context: A138058 A022228 A032431 * A244924 A210319 A295479

Adjacent sequences:  A186532 A186533 A186534 * A186536 A186537 A186538

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 23 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 26 08:42 EDT 2021. Contains 346294 sequences. (Running on oeis4.)