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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A260368 Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111 1
1378, 2047, 5806, 12858, 15440, 38370, 98032, 140897, 274244, 711411, 1222386, 2119236, 5089490, 9954145, 17052298, 37181977, 77288928, 137928650, 279219594, 589162026, 1099902766, 2142331748, 4472874520, 8654078147, 16619752932 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A260370

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Cf. A260370

Sequence in context: A323815 A307422 A256627 * A323814 A204056 A204049

Adjacent sequences:  A260365 A260366 A260367 * A260369 A260370 A260371

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 23 2015

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 December 16 01:43 EST 2019. Contains 330013 sequences. (Running on oeis4.)