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!)
A260105 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00010101 1
6068, 16453, 42372, 121800, 336302, 965197, 2703084, 7792018, 22113228, 63167136, 179982226, 513478377, 1462536224, 4168738950, 11886385630, 33880353109, 96579218388, 275361558899, 784995134662, 2237694214071, 6379091028140 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A260106

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Cf. A260106

Sequence in context: A251818 A241244 A241245 * A084804 A274360 A025515

Adjacent sequences:  A260102 A260103 A260104 * A260106 A260107 A260108

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 16 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 January 18 00:52 EST 2022. Contains 350410 sequences. (Running on oeis4.)