login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A188989 Number of nX6 binary arrays without the pattern 0 0 1 antidiagonally or horizontally 1
33, 1089, 21952, 423606, 7844188, 144733702, 2668260348, 49183191266, 906546313088, 16709359181770, 307984617365928, 5676728147678902, 104632630902956668, 1928573464163110638, 35547186061830482980 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A188992

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

FORMULA

Empirical: a(n) = 22*a(n-1) -47*a(n-2) -420*a(n-3) +1353*a(n-4) +490*a(n-5) -5593*a(n-6) +15840*a(n-7) -27360*a(n-8) +19496*a(n-9) -1828*a(n-10) -1376*a(n-11) -576*a(n-12) for n>14

EXAMPLE

Some solutions for 3X6

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

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

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

CROSSREFS

Sequence in context: A188760 A189699 A207092 * A189199 A009977 A293693

Adjacent sequences: A188986 A188987 A188988 * A188990 A188991 A188992

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 15 2011

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 November 28 03:39 EST 2022. Contains 358406 sequences. (Running on oeis4.)