login
This site is supported by donations to The OEIS Foundation.

 

Logo

"Email this user" was broken Aug 14 to 9am Aug 16. If you sent someone a message in this period, please send it again.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A186050 Number of (n+2)X9 binary arrays with each 3X3 subblock singular 1
15426974, 2466606274, 384595851458, 47475070890310, 6706785849517148, 936496872238986044, 127786000491037137748, 17715530704266966622328, 2450423833775651684970790, 338228103996552089150434500 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A186052

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..16

EXAMPLE

Some solutions for 4X9

..0..0..0..0..0..0..0..0..0....0..0..0..0..0..1..1..1..0

..0..0..0..0..0..0..1..0..0....0..0..0..0..1..0..0..0..0

..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..1..1

..0..0..0..0..0..1..1..0..0....0..0..0..0..1..1..0..1..0

CROSSREFS

Sequence in context: A128480 A273355 A207797 * A121840 A004673 A290385

Adjacent sequences:  A186047 A186048 A186049 * A186051 A186052 A186053

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 11 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified August 19 08:57 EDT 2017. Contains 290794 sequences.