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!)
A260766 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010011 1
2478, 3196, 8056, 16095, 21594, 48788, 104308, 173103, 341748, 744619, 1358260, 2565577, 5470804, 10614658, 19796560, 40837698, 81880380, 154619606, 308916626, 626419385, 1206215390, 2364580587, 4777393178, 9359594548, 18228148840 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A260767

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

..0..0..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..0..0..0..0..0..0..0..0

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

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

CROSSREFS

Cf. A260767

Sequence in context: A124594 A241048 A291199 * A003917 A235763 A235546

Adjacent sequences:  A260763 A260764 A260765 * A260767 A260768 A260769

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 30 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 26 08:00 EDT 2022. Contains 354077 sequences. (Running on oeis4.)