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!)
A231520 Number of nX5 0..1 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors 1
12, 342, 4665, 70462, 1031105, 15000701, 219937967, 3222629836, 47159743290, 690399979855, 10108622083346, 147993608472149, 2166661772771563, 31720960292577983, 464409247083163776, 6799146031063407846 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A231523

LINKS

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

R. H. Hardin, Empirical recurrence of order 70

FORMULA

Empirical recurrence of order 70 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A159363 A009680 A218820 * A305108 A027015 A024297

Adjacent sequences:  A231517 A231518 A231519 * A231521 A231522 A231523

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 10 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 January 25 22:56 EST 2020. Contains 331270 sequences. (Running on oeis4.)