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!)
A231768 Number of (4+1)X(n+1) 0..1 arrays with no element having a strict majority of its horizontal, diagonal and antidiagonal neighbors equal to one 1
81, 3213, 40000, 493695, 8231161, 143424652, 2217939025, 34022084475, 540272041024, 8624998783485, 135974699750761, 2140797614249280, 33837345338388601, 535135681749071815, 8451720496022804100 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A231764

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A143652 A270343 A236894 * A017797 A205207 A254415

Adjacent sequences:  A231765 A231766 A231767 * A231769 A231770 A231771

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 13 2013

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 September 19 20:02 EDT 2020. Contains 337182 sequences. (Running on oeis4.)